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aria-label=\"Yirox technician 3D scanning a part with a handheld scanner\"><div class=\"c hc\"><nav class=\"crumb\" aria-label=\"Breadcrumb\"><a href=\"\/\">Home<\/a> <span>\/<\/span> <a href=\"\/services\/\">Services<\/a> <span>\/<\/span> Vehicle-specific Development<\/nav><span class=\"eyebrow\">Yirox Manufacturing Services<\/span><h1>Vehicle-specific Product Development: From Original Part to Approved&nbsp;Sample<\/h1><p class=\"lead\">A part made for one vehicle has to match that vehicle exactly: its mounting points, its clips, its curves and the version sold in your market. Yirox develops vehicle-specific exterior parts and custom wheel center caps from your drawings, samples or original parts, using measurement, 3D scanning, test fitting and sealed samples before production begins.<\/p><div class=\"btns\"><a class=\"btn btn-r\" href=\"\/contact\/\">Get a Quote \u2192<\/a><a class=\"btn btn-o\" href=\"#faq\">Read the FAQ<\/a><\/div><\/div><\/section>\n<div class=\"stats\"><div class=\"c\"><div class=\"sg\"><div><strong>2010<\/strong><span>Founded<\/span><\/div><div><strong>~180<\/strong><span>Staff<\/span><\/div><div><strong>~20,000 m\u00b2<\/strong><span>Wuxi factory<\/span><\/div><div><strong>40+<\/strong><span>Export countries<\/span><\/div><div><strong>IATF 16949<\/strong><span>+ ISO 9001<\/span><\/div><\/div><\/div><\/div>\n<section id=\"who-this-service-is-for\" class=\"w\"><div class=\"c\"><span class=\"eb\">01 \u2014 Overview<\/span><h2>Who This Service Is&nbsp;For<\/h2><div class=\"cg g3\"><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 12h4l3 7 4-14 3 7h4\"\/><\/svg><\/span><h3>Brands Building a Model-specific Range<\/h3><p>You want spoilers, lips, trim or mud flaps for a popular model and need them to fit without modification. We develop each part around the vehicle, not around a generic template. <a href=\"\/solutions\/aftermarket-brands\/\">Solutions for aftermarket brands \u2192<\/a><\/p><\/div><\/div><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M4 20h16M6 16V9M11 16V5M16 16v-7M20 16v-4\"\/><\/svg><\/span><h3>Distributors Replacing Discontinued Parts<\/h3><p>When an original or aftermarket part is no longer available, we can work from a sample to recreate it, including center caps and trim pieces that customers still need. <a href=\"\/solutions\/distributors-importers\/\">Solutions for distributors and importers \u2192<\/a><\/p><\/div><\/div><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M4 4h16v12H8l-4 4z\"\/><\/svg><\/span><h3>Wheel and Tire Businesses Needing Custom Caps<\/h3><p>Wheel suppliers and tire service chains often need center caps in a specific size, clip style or logo. We develop caps from drawings or samples for steel and alloy wheels. <a href=\"\/solutions\/other-service-providers\/\">Solutions for tire, truck and EV channels \u2192<\/a><\/p><\/div><\/div><\/div><div class=\"yx-kf\"><h3>Key facts about vehicle-specific development<\/h3><ul><li>We confirm the make, model, model years and market version before design.<\/li><li>The original part or vehicle is measured and 3D scanned before design.<\/li><li>You receive a DFM report before tooling starts.<\/li><li>Prototypes are test-fitted on the vehicle or against the original part.<\/li><li>Gaps, flushness and clip engagement are checked before sample approval.<\/li><li>Parts are made in our IATF 16949 certified factory in Wuxi.<\/li><\/ul><\/div><\/div><\/section>\n<section id=\"what-we-need-to-know-about-the-vehicle\" class=\"g\"><div class=\"c\"><span class=\"eb\">02 \u2014 Overview<\/span><h2>What We Need to Know About the&nbsp;Vehicle<\/h2><p class=\"lede\">Fitment problems usually start with missing vehicle information. Before design begins, we confirm the details that change the part.<\/p><div class=\"side\"><figure class=\"fig\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/gloss-black-rear-window-louver-part.webp\" alt=\"Gloss black vehicle-specific rear window louver on an inspection table\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" title=\"\"><figcaption>Gloss black vehicle-specific rear window louver on an inspection table<\/figcaption><\/figure><div><div class=\"cg g1\"><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"3\"\/><path d=\"M12 2v3M12 19v3M2 12h3M19 12h3M5 5l2 2M17 17l2 2M5 19l2-2M17 7l2-2\"\/><\/svg><\/span><h3>Make, Model, Year and Market<\/h3><p>The same model name can cover several generations, facelifts and trims. We confirm the exact model years and the market where the vehicle is sold, because a part for one market may not fit the version sold in another.<\/p><\/div><\/div><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M4 20h16M6 16V9M11 16V5M16 16v-7M20 16v-4\"\/><\/svg><\/span><h3>Regional Body and Bumper Variants<\/h3><p>Bumpers, lips and grilles often differ by region, trim level or option package, for example to fit a different license plate area, sensor layout or bumper shape. We confirm which variant you sell and keep each variant as a separate fitment route.<\/p><\/div><\/div><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M12 2l9 5v10l-9 5-9-5V7z\"\/><path d=\"M12 12l9-5M12 12v10M12 12L3 7\"\/><\/svg><\/span><h3>Mounting Points, Dimensions and Appearance Differences<\/h3><p>We record where the part attaches, its overall dimensions and any appearance differences between versions, such as texture, finish or styling lines, so the new part matches the car and the original look.<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/section>\n<section id=\"what-you-can-send-us\" class=\"w\"><div class=\"c\"><span class=\"eb\">03 \u2014 Overview<\/span><h2>What You Can Send&nbsp;Us<\/h2><div class=\"split rev\"><div class=\"tx\"><p class=\"lede\">You do not need a full CAD package to start. Any of the following is enough for a first review:<\/p><\/div><figure class=\"fig\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/oem-brief-technical-drawing-cad-model-front-lip-sample.webp\" alt=\"Technical drawing, 3D CAD model and front lip sample with calipers\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" title=\"\"><figcaption>Technical drawing, 3D CAD model and front lip sample with calipers<\/figcaption><\/figure><\/div><div class=\"fg g3\"><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><rect x=\"3\" y=\"7\" width=\"18\" height=\"13\" rx=\"2\"\/><path d=\"M8 7V4h8v3M3 12h18\"\/><\/svg><\/span><h4>An original part<\/h4><p>The most reliable reference. We measure and 3D scan it.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"3\"\/><path d=\"M12 2v3M12 19v3M2 12h3M19 12h3M5 5l2 2M17 17l2 2M5 19l2-2M17 7l2-2\"\/><\/svg><\/span><h4>A 3D file or 2D drawing<\/h4><p>We check it against the vehicle information you give us.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M14 3h7v7M21 3l-9 9M10 5H4v15h15v-6\"\/><\/svg><\/span><h4>Photos and dimensions<\/h4><p>Useful for early feasibility, then confirmed with a sample.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 12h4l3 7 4-14 3 7h4\"\/><\/svg><\/span><h4>Access to a vehicle<\/h4><p>For parts that must follow the body, measuring on the vehicle gives the best data.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M4 4h16v12H8l-4 4z\"\/><\/svg><\/span><h4>A competitor or reference product<\/h4><p>We can use it to understand the target, then develop a design for your brand.<\/p><\/div><\/div><div class=\"prose\"><p>Tell us the target market and expected quantity too, because they affect the tooling route and documents.<\/p><\/div><div class=\"yx-cta\"><p><strong>Ready to send your part or vehicle details?<\/strong>Share the vehicle model, photos or a sample. We will reply with the development path and the questions that affect fitment.<\/p><button type=\"button\" class=\"btn btn-r\" data-yxq data-yxq-h=\"Send Your Vehicle and Part Details\" data-yxq-s=\"Share the make, model, years and market, plus photos or a sample. We reply with the development path.\" aria-haspopup=\"dialog\">Send Your Vehicle and Part Details \u2192<\/button><\/div><\/div><\/section>\n<section id=\"development-stages\" class=\"g\"><div class=\"c\"><span class=\"eb\">04 \u2014 How It Works<\/span><h2>Development&nbsp;Stages<\/h2><p class=\"yx-def\">Vehicle-specific development turns an original part, vehicle or drawing into a production part that fits one exact model, in five steps: measure, design, test-fit, tool and approve the sample.<\/p><ol class=\"steps s5\"><li><span class=\"n\">01<\/span><h3>Measurement and 3D Scanning<\/h3><p>We measure the original part or vehicle and use 3D scanning to capture its geometry, including surfaces that are hard to measure by hand. The scan data becomes the base for the design.<\/p><\/li><li><span class=\"n\">02<\/span><h3>Design and DFM<\/h3><p>Our engineers build the part model around the scan or your drawing and review it for manufacturability: wall thickness, draft, clip design and the cosmetic faces. You receive a DFM report before tooling.<\/p><\/li><li><span class=\"n\">03<\/span><h3>Prototype and Test Fit<\/h3><p>A prototype or trial sample is fitted on the vehicle or against the original part. We check gaps, flushness, clip engagement and how the part lines up with surrounding panels.<\/p><\/li><li><span class=\"n\">04<\/span><h3>Revision<\/h3><p>Findings from the test fit go back into the design and, if needed, the tool. Each revision is recorded so you can see what changed.<\/p><\/li><li><span class=\"n\">05<\/span><h3>Approved (Sealed) Sample<\/h3><p>Once fit and appearance are approved, the sample is sealed as the reference for production and kept on file for checking later batches.<\/p><\/li><\/ol><div class=\"yx-cta\"><p><strong>Want a timeline for your part?<\/strong>Tell us the part and quantity and we will map scan, tooling and sample approval for your project.<\/p><button type=\"button\" class=\"btn btn-r\" data-yxq data-yxq-h=\"Get a Development Timeline\" data-yxq-s=\"Tell us the part and target quantity. We will map scan, tooling and sample approval dates.\" aria-haspopup=\"dialog\">Get a Development Timeline \u2192<\/button><\/div><\/div><\/section>\n<section id=\"how-3d-scanning-supports-fitment-of-car-parts\" class=\"w\"><div class=\"c\"><span class=\"eb\">05 \u2014 How It Works<\/span><h2>How 3D Scanning Supports Fitment of Car&nbsp;Parts<\/h2><div class=\"split\"><div class=\"tx\"><p class=\"lede\">3D scanning turns an original part or a vehicle surface into measurable data. We use the scan to check curves, mounting positions and gaps against the new design before steel is cut, which reduces the risk of a mold that needs major changes after the first trial. Scanning does not replace a test fit; it makes the first test fit more likely to pass.<\/p><\/div><figure class=\"fig\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/3d-scanning-car-door-panel.webp\" alt=\"Robot-mounted optical 3D scanner measuring a car door panel (illustrative photo; Kelly No.715, CC BY-SA 4.0, Wikimedia Commons)\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" title=\"\"><figcaption>Robot-mounted optical 3D scanner measuring a car door panel (illustrative photo; Kelly No.715, CC BY-SA 4.0, Wikimedia Commons)<\/figcaption><\/figure><\/div><div class=\"ad5\"><h3>Scanner and Deliverables<\/h3><p class=\"lede\">We scan vehicles and sample parts with a Shining3D EinScan HX handheld scanner (blue laser plus infrared). Accuracy is 0.04 mm, and large parts or body areas are stitched at 0.1 mm per metre. STEP and IGES models are rebuilt from the scan; they are not the vehicle maker&#8217;s original CAD.<\/p><div class=\"tw\"><table><thead><tr><th>Deliverable<\/th><th>Format<\/th><th>Used for<\/th><\/tr><\/thead><tbody><tr><td>Mesh<\/td><td>STL \/ PLY<\/td><td>Fit studies and 3D printing<\/td><\/tr><tr><td>Point cloud<\/td><td>ASC<\/td><td>Raw scan data for your engineers<\/td><\/tr><tr><td>Reverse-engineered model<\/td><td>STEP \/ IGES<\/td><td>Part design and tooling<\/td><\/tr><tr><td>Deviation color map<\/td><td>PDF \/ PNG (\u00b10.5 \/ \u00b11.0 mm scales)<\/td><td>Comparing a sample or first article with the scan<\/td><\/tr><tr><td>Inspection report<\/td><td>PDF<\/td><td>Recording the checked points<\/td><\/tr><\/tbody><\/table><\/div><p class=\"lk\">More detail on our <a href=\"\/capabilities\/3d-scanning-reverse-engineering\/\">3D scanning and reverse engineering<\/a> page.<\/p><\/div><\/div><\/section>\n<section id=\"application-engineering\" class=\"g\"><div class=\"c\"><span class=\"eb\">06 \u2014 Engineering<\/span><h2>Application&nbsp;Engineering<\/h2><figure class=\"fig wide\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/oem-private-label-exterior-parts-design.webp\" alt=\"Engineer reviewing a 3D bumper model next to a sample part\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" title=\"\"><figcaption>Engineer reviewing a 3D bumper model next to a sample part<\/figcaption><\/figure><div class=\"cg g3\"><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M14 3h7v7M21 3l-9 9M10 5H4v15h15v-6\"\/><\/svg><\/span><h3>Original-part Geometry and Interfaces<\/h3><p>A vehicle part touches other parts: the bumper, the body, a fender or a trim strip. We study these interfaces on the original part so the new part sits at the correct height, gap and angle.<\/p><\/div><\/div><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"9\"\/><path d=\"M8 12l3 3 5-6\"\/><\/svg><\/span><h3>Mounting-point and Clip Location<\/h3><p>Clips, screws and tape must line up with the holes and surfaces already on the vehicle. We locate each mounting point from the scan and the original part, and design clips that hold firmly without damaging paint or the part itself during installation.<\/p><\/div><\/div><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"9\"\/><path d=\"M8 12l3 3 5-6\"\/><\/svg><\/span><h3>Prototype Fit vs Production Fit<\/h3><p>A prototype that fits well does not guarantee that every production part will. Production parts come from a steel tool, shrink as they cool and vary slightly from shot to shot. That is why we confirm fit again on trial samples from the production tool, not only on the first prototype.<\/p><\/div><\/div><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M14 3h7v7M21 3l-9 9M10 5H4v15h15v-6\"\/><\/svg><\/span><h3>Tolerance Stack-up<\/h3><p>Small variations add up. The tolerance on the part, the clip, the vehicle panel and the mounting hole combine into the final gap. We review the stack-up on critical areas and set tolerances so the part still fits when each component is at the edge of its range.<\/p><\/div><\/div><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M14 3h7v7M21 3l-9 9M10 5H4v15h15v-6\"\/><\/svg><\/span><h3>Design Revision and Sample Change<\/h3><p>When the vehicle maker changes a facelift, a clip or a mounting point, the part may need to change too. We keep the approved design and sample under revision control, so a change to one version does not affect another.<\/p><\/div><\/div><\/div><\/div><\/section>\n<section id=\"common-fitment-problems-and-how-we-prevent-them\" class=\"band\" style=\"background-image:linear-gradient(90deg,rgba(8,17,40,.94) 0%,rgba(10,22,52,.86) 55%,rgba(10,22,52,.6) 100%),url('https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/yirox-cmm-inspection-room-coordinate-measuring-machine.webp')\"><div class=\"c\"><span class=\"eb\">07 \u2014 Engineering<\/span><h2>Common Fitment Problems and How We Prevent&nbsp;Them<\/h2><div class=\"fg g3\"><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><rect x=\"3\" y=\"7\" width=\"18\" height=\"13\" rx=\"2\"\/><path d=\"M8 7V4h8v3M3 12h18\"\/><\/svg><\/span><h4>Wrong version<\/h4><p>A part built for one facelift or market does not fit another. We confirm the model years and market version first.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"3\"\/><path d=\"M12 2v3M12 19v3M2 12h3M19 12h3M5 5l2 2M17 17l2 2M5 19l2-2M17 7l2-2\"\/><\/svg><\/span><h4>Gaps and steps<\/h4><p>Small errors in surface shape show as uneven gaps against the body. 3D scanning and CMM checks on critical points keep the surface on target.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M14 3h7v7M21 3l-9 9M10 5H4v15h15v-6\"\/><\/svg><\/span><h4>Clips that miss or break<\/h4><p>Clips in the wrong place or with the wrong flexibility fail during installation. We locate them from the original part and test them on samples.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 12h4l3 7 4-14 3 7h4\"\/><\/svg><\/span><h4>Warped long parts<\/h4><p>Spoilers and skirts can bow after molding. Gate position, cooling and material choice are reviewed during DFM to keep them straight.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M4 4h16v12H8l-4 4z\"\/><\/svg><\/span><h4>Parts that fit once but not twice<\/h4><p>Fit must hold across production, not only on one sample. We check trial samples from the production tool before sign-off.<\/p><\/div><\/div><\/div><\/section>\n<section id=\"generic-vs-vehicle-specific-parts-which-should-you-develop\" class=\"w\"><div class=\"c\"><span class=\"eb\">08 \u2014 Engineering<\/span><h2>Generic vs Vehicle-specific Parts: Which Should You&nbsp;Develop?<\/h2><p class=\"lede\">Not every product in a range needs its own tooling. The right choice depends on how many vehicles you want to cover and how exact the fit must be.<\/p><div class=\"tw\"><table><thead><tr><th>Factor<\/th><th>Universal part<\/th><th>Vehicle-specific part<\/th><\/tr><\/thead><tbody><tr><td>Fit<\/td><td>Fits many vehicles with some adjustment<\/td><td>Matches one make, model, year and market<\/td><\/tr><tr><td>Installation<\/td><td>Often adhesive tape or trimming<\/td><td>Uses original mounting points or clips where possible<\/td><\/tr><tr><td>Tooling<\/td><td>One mold can serve a wide market<\/td><td>Usually a dedicated mold per fitment<\/td><\/tr><tr><td>Listing and returns<\/td><td>Broad listing, more fitment questions<\/td><td>Clear fitment data, fewer wrong-fit returns<\/td><\/tr><tr><td>Best for<\/td><td>Entry-level ranges and fast launches<\/td><td>Brands that compete on fit and finish<\/td><\/tr><\/tbody><\/table><\/div><div class=\"cg g2\"><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M4 4h16v12H8l-4 4z\"\/><\/svg><\/span><h3>When a Universal Part Is Enough<\/h3><p>Simple trims, small spoilers and many mud flap designs can be offered as universal parts. If your customers accept trimming or tape mounting, a universal design keeps tooling simple and lets one SKU cover more vehicles.<\/p><\/div><\/div><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M4 20h16M6 16V9M11 16V5M16 16v-7M20 16v-4\"\/><\/svg><\/span><h3>When You Need a Dedicated Fitment<\/h3><p>Front lips, rear diffusers, bumper covers, grilles, model-specific wheel covers and center caps usually need a dedicated fitment. These parts sit against body lines or mounting features, so small differences show immediately once installed.<\/p><\/div><\/div><\/div><\/div><\/section>\n<section id=\"materials-and-finishes-for-vehicle-specific-parts\" class=\"g\"><div class=\"c\"><span class=\"eb\">09 \u2014 Materials &#038; Tooling<\/span><h2>Materials and Finishes for Vehicle-specific&nbsp;Parts<\/h2><div class=\"split\"><div class=\"tx\"><p class=\"lede\">Material depends on where the part sits and how it must behave. ABS suits rigid, painted parts such as spoilers and trim. PP and TPO suit flexible parts such as mud flaps and bumper covers. ASA suits exterior trim left in its molded color.<\/p><p class=\"lede\">Finishes include gloss black, carbon pattern and primer, plus molded-in black for trim. For real carbon fiber or fiberglass spoilers we work through partner factories. Read <a href=\"\/carbon-fiber-vs-abs-vs-fiberglass-spoilers\/\">carbon fiber vs ABS vs fiberglass spoilers<\/a> for the trade-offs. The finish for each vehicle-specific part is approved on the fitment sample, and weathering test reports are available for exterior parts.<\/p><\/div><figure class=\"fig\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/carbon-pattern-finish-close-up.webp\" alt=\"Close-up of a carbon pattern finish on a molded exterior part\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" title=\"\"><figcaption>Close-up of a carbon pattern finish on a molded exterior part<\/figcaption><\/figure><\/div><\/div><\/section>\n<section id=\"tooling-for-vehicle-specific-parts\" class=\"w\"><div class=\"c\"><span class=\"eb\">10 \u2014 Materials &#038; Tooling<\/span><h2>Tooling for Vehicle-specific&nbsp;Parts<\/h2><p class=\"lede\">Most vehicle-specific parts need a new injection mold or a modification of an existing one.<\/p><div class=\"fg g2\"><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><rect x=\"3\" y=\"7\" width=\"18\" height=\"13\" rx=\"2\"\/><path d=\"M8 7V4h8v3M3 12h18\"\/><\/svg><\/span><h4>New or modified mold<\/h4><p>Whether a part needs a new injection mold or a modification of an existing one is decided during the fitment and DFM review.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"3\"\/><path d=\"M12 2v3M12 19v3M2 12h3M19 12h3M5 5l2 2M17 17l2 2M5 19l2-2M17 7l2-2\"\/><\/svg><\/span><h4>Mold ownership<\/h4><p>Mold ownership is agreed per project and confirmed before tooling.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M14 3h7v7M21 3l-9 9M10 5H4v15h15v-6\"\/><\/svg><\/span><h4>Lead time<\/h4><p>Lead time depends on product and scale.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 12h4l3 7 4-14 3 7h4\"\/><\/svg><\/span><h4>How tools are approved<\/h4><p>See <a href=\"\/services\/tooling-sampling\/\">tooling and sampling<\/a> for how we build and approve tools.<\/p><\/div><\/div><\/div><\/section>\n<section id=\"installation-checks-and-instructions\" class=\"g\"><div class=\"c\"><span class=\"eb\">11 \u2014 Materials &#038; Tooling<\/span><h2>Installation Checks and&nbsp;Instructions<\/h2><p class=\"lede\">A part that fits but is hard to install still creates returns.<\/p><figure class=\"fig wide\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/universal-gt-wing-rear-spoiler-mounting-hardware-kit.webp\" alt=\"Spoiler brackets, end plates and mounting hardware kit\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" title=\"\"><figcaption>Spoiler brackets, end plates and mounting hardware kit<\/figcaption><\/figure><div class=\"fg g2\"><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><rect x=\"3\" y=\"7\" width=\"18\" height=\"13\" rx=\"2\"\/><path d=\"M8 7V4h8v3M3 12h18\"\/><\/svg><\/span><h4>Tools needed<\/h4><p>During test fitting we note the tools needed for the installation.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"3\"\/><path d=\"M12 2v3M12 19v3M2 12h3M19 12h3M5 5l2 2M17 17l2 2M5 19l2-2M17 7l2-2\"\/><\/svg><\/span><h4>Installation order<\/h4><p>We record the installation order step by step.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M14 3h7v7M21 3l-9 9M10 5H4v15h15v-6\"\/><\/svg><\/span><h4>Risk steps<\/h4><p>Any step that could damage paint or clips is flagged.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 12h4l3 7 4-14 3 7h4\"\/><\/svg><\/span><h4>Branded installation guide<\/h4><p>These notes become the base for the installation guide, which can carry your brand through our <a href=\"\/services\/private-label-packaging\/\">private label and packaging<\/a> service.<\/p><\/div><\/div><\/div><\/section>\n<section id=\"quality-checks-and-documents\" class=\"w\"><div class=\"c\"><span class=\"eb\">12 \u2014 Quality &#038; Documents<\/span><h2>Quality Checks and&nbsp;Documents<\/h2><div class=\"split\"><div class=\"tx\"><p class=\"lede\">Vehicle-specific parts are checked against the approved sample with first article inspection (FAI) and CMM measurement on critical points. Our quality system is certified to ISO 9001 and IATF 16949. On request, we can provide PPAP documentation up to Level 3, weathering test reports and recycled-content statements. See <a href=\"\/certifications-compliance\/\">certifications and compliance<\/a>.<\/p><\/div><figure class=\"fig\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/exterior-parts-quality-inspection.webp\" alt=\"Inspector measuring a gloss black exterior part on a checking fixture\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" title=\"\"><figcaption>Inspector measuring a gloss black exterior part on a checking fixture<\/figcaption><\/figure><\/div><div class=\"certblk\"><div class=\"certs\"><a class=\"cert\" href=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/yirox-iso-9001-quality-management-system-certificate.webp\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/yirox-iso-9001-quality-management-system-certificate.webp\" alt=\"Yirox ISO 9001 quality management system certificate\" loading=\"lazy\" width=\"362\" height=\"512\" title=\"\"><span>ISO 9001<em>View certificate \u2197<\/em><\/span><\/a><a class=\"cert\" href=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/yirox-iatf-16949-certificate-2026.webp\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/yirox-iatf-16949-certificate-2026.webp\" alt=\"Yirox IATF 16949 certificate\" loading=\"lazy\" width=\"362\" height=\"512\" title=\"\"><span>IATF 16949<em>View certificate \u2197<\/em><\/span><\/a><\/div><div class=\"qts\"><div class=\"qt\"><span class=\"qi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M9 11l3 3 8-8\"\/><path d=\"M20 12v7a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h9\"\/><\/svg><\/span><strong>FAI<\/strong><span>First article inspection<\/span><\/div><div class=\"qt\"><span class=\"qi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M4 20h16\"\/><path d=\"M7 20V8h10v12\"\/><path d=\"M12 8V3\"\/><circle cx=\"12\" cy=\"13\" r=\"2\"\/><\/svg><\/span><strong>CMM<\/strong><span>Coordinate measuring machine records<\/span><\/div><div class=\"qt\"><span class=\"qi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\/><path d=\"M14 2v6h6M8 13h8M8 17h5\"\/><\/svg><\/span><strong>PPAP<\/strong><span>Up to Level 3<\/span><\/div><div class=\"qt\"><span class=\"qi\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><rect x=\"4\" y=\"11\" width=\"16\" height=\"10\" rx=\"2\"\/><path d=\"M8 11V7a4 4 0 0 1 8 0v4\"\/><\/svg><\/span><strong>NDA<\/strong><span>Signed before drawing review<\/span><\/div><\/div><\/div><div class=\"ad5\"><h3>CMM Verification Against Your Vehicle Data<\/h3><p class=\"lede\">First articles are measured on two in-house coordinate measuring machines and compared with your drawing or the scan data before approval.<\/p><div class=\"tw\"><table><thead><tr><th>Machine<\/th><th>Measuring range<\/th><th>Accuracy (MPEe)<\/th><\/tr><\/thead><tbody><tr><td>Hexagon Global S 09.15.08 with HP-S-X1 scanning probe<\/td><td>900 \u00d7 1500 \u00d7 800 mm<\/td><td>\u22641.9 + L\/300 \u03bcm<\/td><\/tr><tr><td>Serein Croma 06.08.06<\/td><td>600 \u00d7 800 \u00d7 600 mm<\/td><td>\u22642.4 + L\/300 \u03bcm<\/td><\/tr><\/tbody><\/table><\/div><p class=\"lk\">See <a href=\"\/capabilities\/quality-inspection-cmm\/\">quality inspection and CMM<\/a>.<\/p><\/div><\/div><\/section>\n<section id=\"why-develop-with-yirox\" class=\"g\"><div class=\"c\"><span class=\"eb\">13 \u2014 Why Yirox<\/span><h2>Why Develop with&nbsp;Yirox<\/h2><div class=\"cg g2\"><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 12h4l3 7 4-14 3 7h4\"\/><\/svg><\/span><h3>Measurement and Tooling Under One Roof<\/h3><p>3D scanning, design, tooling and molding happen in our own factory in Wuxi, so data from the vehicle goes straight into the tool and fit problems are corrected by the same team.<\/p><\/div><\/div><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M14 3h7v7M21 3l-9 9M10 5H4v15h15v-6\"\/><\/svg><\/span><h3>Exterior Parts Focus<\/h3><p>Since 2010 we have concentrated on exterior parts and wheel center caps, where fit and appearance are judged by eye on every car.<\/p><\/div><\/div><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M14 3h7v7M21 3l-9 9M10 5H4v15h15v-6\"\/><\/svg><\/span><h3>Records You Can Use<\/h3><p>Every revision, trial and approved sample is recorded. With ISO 9001 and IATF 16949 certification and PPAP up to Level 3, your quality team gets documents it can review.<\/p><\/div><\/div><div class=\"icc\"><div class=\"icb\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><rect x=\"3\" y=\"7\" width=\"18\" height=\"13\" rx=\"2\"\/><path d=\"M8 7V4h8v3M3 12h18\"\/><\/svg><\/span><h3>Confidential Development<\/h3><p>We can sign an NDA before you share vehicle data, drawings or samples, and your design stays yours to sell.<\/p><\/div><\/div><\/div><\/div><\/section>\n<section id=\"custom-wheel-center-caps-and-custom-hub-caps-from-drawings-or-samples\" class=\"w\"><div class=\"c\"><span class=\"eb\">14 \u2014 Applications<\/span><h2>Custom Wheel Center Caps and Custom Hub Caps from Drawings or&nbsp;Samples<\/h2><div class=\"split\"><div class=\"tx\"><p class=\"lede\">Wheel center caps are one of our core injection-molded products. We develop custom center caps and OEM-style center caps for steel and alloy wheels, matched to the wheel bore, clip or retention style and the look you need.<\/p><\/div><figure class=\"fig\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/center-cap-measurement-diagram.webp\" alt=\"Diagram of center cap measurements in a wheel recess\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" title=\"\"><figcaption>Diagram of center cap measurements in a wheel recess<\/figcaption><\/figure><\/div><div class=\"fg g2\"><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><rect x=\"3\" y=\"7\" width=\"18\" height=\"13\" rx=\"2\"\/><path d=\"M8 7V4h8v3M3 12h18\"\/><\/svg><\/span><h4>From a drawing or sample<\/h4><p>Send a drawing, a cap or the wheel, and we measure the bore and retention points.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"3\"\/><path d=\"M12 2v3M12 19v3M2 12h3M19 12h3M5 5l2 2M17 17l2 2M5 19l2-2M17 7l2-2\"\/><\/svg><\/span><h4>Custom wheel center caps with logo<\/h4><p>Add your logo to the cap through printing or a molded-in design.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M14 3h7v7M21 3l-9 9M10 5H4v15h15v-6\"\/><\/svg><\/span><h4>Finishes<\/h4><p>Gloss black, carbon pattern and primer finishes, or molded-in black.<\/p><\/div><div class=\"fc\"><span class=\"ic\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 12h4l3 7 4-14 3 7h4\"\/><\/svg><\/span><h4>Retention testing<\/h4><p>Caps are checked for fit and removal so they stay in place and can be refitted after tire service.<\/p><\/div><\/div><div class=\"prose\"><p>We also make steel wheels, so caps and wheels can be developed together. See our <a href=\"\/product-category\/wheel-covers-and-hubcaps-manufacturer\/\">wheel covers and hubcaps<\/a>, <a href=\"\/wheel-center-caps\/\">wheel center caps guide<\/a> and <a href=\"\/product-category\/wheels-tire-accessories\/\">wheels and tire accessories<\/a>. To confirm wheel fitment, see <a href=\"\/how-to-measure-bolt-pattern\/\">how to measure bolt pattern<\/a>.<\/p><\/div><\/div><\/section>\n<section id=\"vehicle-applications-and-related-product-lines\" class=\"g\"><div class=\"c\"><span class=\"eb\">15 \u2014 Applications<\/span><h2>Vehicle Applications and Related Product&nbsp;Lines<\/h2><p class=\"lede\">For the tooling side of development, see <a href=\"\/services\/tooling-sampling\/\">tooling and sampling<\/a>. For full product development, see <a href=\"\/auto-parts-oem-service\/\">OEM \/ ODM manufacturing<\/a>.<\/p><ul class=\"tiles g2\"><li><a href=\"\/product-category\/auto-body-kits-and-aero-parts-manufacturer\/\">Body kits and aero parts<\/a><\/li><li><a href=\"\/product-category\/front-bumpers\/\">Front bumpers<\/a> and <a href=\"\/product-category\/rear-bumpers\/\">rear bumpers<\/a><\/li><li><a href=\"\/product-category\/automotive-exterior-trim-accessories\/\">Exterior trim and grille parts<\/a><\/li><li><a href=\"\/product-category\/pickup-tonneau-covers\/\">Pickup tonneau covers<\/a> and <a href=\"\/product-category\/truck-exterior-accessories\/\">truck exterior accessories<\/a><\/li><li><a href=\"\/product-category\/ev-car-exterior-accessories\/\">EV exterior accessories<\/a><\/li><\/ul><div class=\"cg g3 withimg\"><div class=\"icc\"><figure class=\"cimg\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/custom-gloss-black-wheel-center-caps.webp\" alt=\"Gloss black custom wheel center caps, one turned over to show the retention clips\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" title=\"\"><\/figure><div class=\"icb\"><h3>Tesla Model Y-specific Parts: Model Y Wheel Caps, Mud Flaps and Interior Parts<\/h3><p>Tesla Model Y is one of the vehicles we develop parts for. We make Model Y-specific wheel caps, mud flaps and interior parts, each developed around the vehicle&#8217;s own mounting points. Because Model Y has been updated during its production, we confirm which version your customers drive before design starts. For the full product overview, see our <a href=\"\/tesla-model-y-accessories\/\">Tesla Model Y accessories guide<\/a> and <a href=\"\/mud-flaps-vs-splash-guards\/\">mud flaps vs splash guards<\/a>.<\/p><\/div><\/div><div class=\"icc\"><figure class=\"cimg\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/yirox-replacement-front-bumper-cover-honeycomb-grille.webp\" alt=\"Replacement front bumper cover with honeycomb grille inserts\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" title=\"\"><\/figure><div class=\"icb\"><h3>Pickup, Bumper and Grille Development<\/h3><p>Vehicle-specific work is not limited to passenger cars. For pickups, parts such as tonneau covers and bed accessories depend on cab type, bed length and rail systems, so each bed configuration is treated as its own fitment route.<\/p><p>For bumpers and grilles, sensor positions, plate areas and trim levels change the part, so we confirm the variant before design and keep separate samples for each one. The same measure, design, test fit, revise and seal process applies to every vehicle type.<\/p><\/div><\/div><div class=\"icc\"><figure class=\"cimg\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/alloy-vs-steel-wheels-side-by-side.webp\" alt=\"Black steel wheel with a wheel cover beside an alloy wheel\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" title=\"\"><\/figure><div class=\"icb\"><h3>Center Caps and Steel Wheels Developed Together<\/h3><p>Because we make both steel wheels and center caps, a cap can be designed around the actual wheel it will sit on rather than a sample wheel from another supplier. That makes it easier to control the bore, the retention ring or clips, and the clearance to the wheel face and the balancing weights fitted during tire service.<\/p><p>For tire shops and wheel distributors, matching caps and wheels from one source also simplifies replacement orders, because the cap part number follows the wheel.<\/p><\/div><\/div><\/div><\/div><\/section>\n<section id=\"how-a-vehicle-specific-project-is-quoted\" class=\"w\"><div class=\"c\"><span class=\"eb\">16 \u2014 Quote &#038; Checklist<\/span><h2>How a Vehicle-specific Project Is&nbsp;Quoted<\/h2><p class=\"lede\">A first quote covers the development route, the tooling route and the sample plan. To prepare it we look at the part size and shape, how many variants you need, the material and finish, whether an existing tool can be modified, and the documents your market requires.<\/p><p class=\"lede\">Lead time depends on product and scale and is stated in the quote. Mold ownership is agreed per project and written into the quote, so there are no surprises when tooling starts.<\/p><\/div><\/section>\n<section id=\"vehicle-specific-development-checklist-for-buyers\" class=\"g\"><div class=\"c\"><span class=\"eb\">17 \u2014 Quote &#038; Checklist<\/span><h2>Vehicle-specific Development Checklist for&nbsp;Buyers<\/h2><p class=\"lede\">Use this list before you send a brief. Each item removes a common cause of delay or rework.<\/p><ul class=\"tiles g2\"><li>Confirm the exact model years, facelift and trim level for each fitment<\/li><li>Confirm the market the vehicle is sold in and any regional bumper or sensor differences<\/li><li>Send an original part, a 3D file, a drawing or clear photos with key dimensions<\/li><li>State the mounting method you want: original clips, screws, adhesive tape or a combination<\/li><li>Choose the material and finish, for example gloss black, carbon pattern or primer<\/li><li>Decide whether the part carries your logo, by printing or molded-in<\/li><li>Agree the packaging, labels and barcodes, including Amazon FNSKU if you sell on Amazon<\/li><li>List the documents you need, such as FAI, CMM records or PPAP up to Level 3<\/li><\/ul><\/div><\/section>\n<section id=\"related\" class=\"sec rel\"><div class=\"c\"><h2>Related Capabilities and Materials&nbsp;Guide<\/h2><p class=\"yx-intro\">Vehicle-specific development depends on the right data, process and plastic. Use these guides to check scanning, inspection, finishing and material choices before you approve a tool.<\/p><span class=\"cl2\">Capabilities<\/span><p class=\"yx-intro\">See how each part is scanned, molded, painted and measured, so fitment is proven before production.<\/p><div class=\"rcg yx-img n4\"><a class=\"rc\" href=\"\/capabilities\/3d-scanning-reverse-engineering\/\"><span class=\"ph\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/yirox-handheld-3d-scanning-part-measurement.webp\" alt=\"Handheld 3D scanning of a part for measurement\" width=\"600\" height=\"400\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/span><h3>3D Scanning &#038; Reverse Engineering<\/h3><p>Scanning vehicles and sample parts to build accurate 3D data.<\/p><span class=\"more\">Explore 3D scanning and reverse engineering \u2192<\/span><\/a><a class=\"rc\" href=\"\/capabilities\/quality-inspection-cmm\/\"><span class=\"ph\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/yirox-cmm-inspection-room-coordinate-measuring-machine.webp\" alt=\"Coordinate measuring machine in the Yirox inspection room\" width=\"600\" height=\"400\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/span><h3>Quality Inspection &#038; CMM<\/h3><p>FAI, CMM measurement and PPAP up to Level 3.<\/p><span class=\"more\">Explore CMM inspection and PPAP \u2192<\/span><\/a><a class=\"rc\" href=\"\/capabilities\/painting-surface-finishing\/\"><span class=\"ph\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/robotic-spray-painting-bumper-covers-paint-booth.webp\" alt=\"Robotic spray painting of bumper covers in a paint booth\" width=\"600\" height=\"400\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/span><h3>Painting &#038; Surface Finishing<\/h3><p>3C2B paint lines, gloss black, body color and molded-in texture.<\/p><span class=\"more\">Explore automotive plastic painting \u2192<\/span><\/a><a class=\"rc\" href=\"\/services\/tooling-sampling\/\"><span class=\"ph\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/molded-trim-trial-sample-on-granite-inspection-plate.webp\" alt=\"Black injection-molded trim trial sample on a granite inspection plate\" width=\"600\" height=\"400\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/span><h3>Mold Tooling &#038; Sampling<\/h3><p>DFM, tool build, trials and sample approval.<\/p><span class=\"more\">Explore automotive mold tooling \u2192<\/span><\/a><\/div><span class=\"cl2\">Materials guide<\/span><p class=\"yx-intro\">Compare plastics by strength, finish and outdoor life to choose the right one for your vehicle part.<\/p><div class=\"rcg yx-img\"><a class=\"rc\" href=\"\/materials\/abs\/\"><span class=\"ph\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/gloss-black-front-grille-with-red-trim.webp\" alt=\"Gloss black front grille with a red trim line\" width=\"600\" height=\"400\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/span><h3>ABS<\/h3><p>Rigid, paintable plastic for spoilers and styling parts.<\/p><span class=\"more\">Compare ABS plastic grades and finishes \u2192<\/span><\/a><a class=\"rc\" href=\"\/materials\/pp-tpo\/\"><span class=\"ph\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/raw-black-pp-bumper-on-factory-rack.webp\" alt=\"Raw black molded bumper fascia on a rack in the factory\" width=\"600\" height=\"400\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/span><h3>PP and TPO<\/h3><p>Tough, flexible plastic for bumper covers and mud flaps.<\/p><span class=\"more\">See PP plastic and TPO design tips \u2192<\/span><\/a><a class=\"rc\" href=\"\/materials\/textured-grain\/\"><span class=\"ph\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/mold-texture-sample-book.webp\" alt=\"Open mold texture sample book with grain swatches\" width=\"600\" height=\"400\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/span><h3>Mold Texture &amp; Grain<\/h3><p>VDI 3400 and SPI mold textures and grain for unpainted exterior parts.<\/p><span class=\"more\">Compare plastic texture grades \u2192<\/span><\/a><a class=\"rc\" href=\"\/materials\/asa\/\"><span class=\"ph\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/grain-textured-pillar-trim-panel.webp\" alt=\"Grain-textured molded plastic pillar trim panel\" width=\"600\" height=\"400\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/span><h3>ASA<\/h3><p>Weather-resistant plastic for trim left in its molded color.<\/p><span class=\"more\">Read ASA vs ABS for unpainted trim \u2192<\/span><\/a><a class=\"rc\" href=\"\/carbon-fiber-vs-abs-vs-fiberglass-spoilers\/\"><span class=\"ph\"><img loading=\"lazy\" src=\"https:\/\/yiroxautoparts.com\/wp-content\/uploads\/2026\/10\/hydro-dipped-carbon-pattern-window-switch-panels.webp\" alt=\"Hydro-dipped carbon fiber pattern window switch panels\" width=\"600\" height=\"400\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/span><h3>Carbon Fiber vs ABS vs Fiberglass<\/h3><p>Trade-offs between spoiler materials.<\/p><span class=\"more\">Compare carbon fiber vs ABS vs fiberglass \u2192<\/span><\/a><\/div><\/div><\/section><section class=\"g\" id=\"what-buyers-say\"><div class=\"c\"><h2>What Buyers Say About Vehicle-specific&nbsp;Development<\/h2><p class=\"yx-intro\">Engineers and brand owners on how their projects moved from a scan or sample to an approved part.<\/p><div class=\"yxt\"><figure class=\"tq\"><blockquote>\u201cTwo model years looked almost identical in the catalog, but the mounting points weren&#8217;t the same. Yirox caught that during the fitment review. It was a small detail that could have turned into a lot of returns for us.\u201d<\/blockquote><figcaption><strong>Parts Distribution Manager<\/strong><em>Vehicle Fitment Verification<\/em><\/figcaption><\/figure><figure class=\"tq\"><blockquote>\u201cWe sent over an original bumper trim piece because the measurements in our old drawings were incomplete. Their team used the sample to help sort out the missing details. The process was much more practical than trying to explain everything through photos.\u201d<\/blockquote><figcaption><strong>Replacement Parts Importer<\/strong><em>Reverse Engineering Project<\/em><\/figcaption><\/figure><figure class=\"tq\"><blockquote>\u201cTruck accessories can be tricky when bed lengths and configurations vary by market. I appreciated that they asked us to confirm the exact vehicle details before proceeding. It showed they understood why fitment matters to our customers.\u201d<\/blockquote><figcaption><strong>Truck Accessories Buyer<\/strong><em>Pickup Accessory Sourcing<\/em><\/figcaption><\/figure><\/div><p class=\"yxt-note\">Names and companies withheld at the customer\u2019s request.<\/p><\/div><\/section><section id=\"faq\" class=\"w faqw\"><div class=\"c\"><span class=\"eb\">18 \u2014 FAQ<\/span><h2>FAQ<\/h2><details><summary>Can you make a part to fit a specific vehicle model and year?<\/summary><div class=\"a\"><p>Yes. We confirm the make, model, model years and market version, then measure and 3D scan the original part or vehicle before design.<\/p><\/div><\/details><details><summary>Can you develop custom wheel center caps from a sample?<\/summary><div class=\"a\"><p>Yes. Send a cap, the wheel or a drawing and we will measure the bore and retention points and develop a matching cap.<\/p><\/div><\/details><details><summary>Can you add my logo to center caps?<\/summary><div class=\"a\"><p>Yes. Logos can be printed or molded into the cap, depending on the design and finish.<\/p><\/div><\/details><details><summary>How do you handle regional versions of the same model?<\/summary><div class=\"a\"><p>We treat each regional or trim variant as a separate fitment route and confirm it on a sample before production.<\/p><\/div><\/details><details><summary>What is the difference between prototype fit and production fit?<\/summary><div class=\"a\"><p>Prototype fit is checked on the first sample. Production fit is checked on parts from the production tool, which can differ slightly because of shrinkage and process variation. We confirm both.<\/p><\/div><\/details><details><summary>How long does vehicle-specific development take?<\/summary><div class=\"a\"><p>It depends on product and scale. We confirm the timeline after reviewing the vehicle, the part and the tooling route.<\/p><\/div><\/details><details><summary>Do you use 3D scanning?<\/summary><div class=\"a\"><p>Yes. We use 3D scanning together with manual measurement to capture original parts and vehicle surfaces.<\/p><\/div><\/details><details><summary>Can you provide PPAP documents for vehicle-specific parts?<\/summary><div class=\"a\"><p>Yes. PPAP documentation is available up to Level 3, along with weathering test reports and recycled-content statements on request.<\/p><\/div><\/details><details><summary>Who owns the mold for a vehicle-specific part?<\/summary><div class=\"a\"><p>Mold ownership is agreed per project before tooling starts.<\/p><\/div><\/details><details><summary>Do I need a separate mold for each vehicle?<\/summary><div class=\"a\"><p>Usually yes for parts that sit against body lines or use original mounting points, such as front lips, diffusers, grilles and center caps. Some trims and mud flaps can be designed as universal parts that cover several vehicles with one mold.<\/p><\/div><\/details><details><summary>Can you develop a part if I only have photos?<\/summary><div class=\"a\"><p>Photos and key dimensions are enough for an early feasibility review. Before tooling, we confirm the design with an original part, a 3D file or access to a vehicle so the fit can be checked.<\/p><\/div><\/details><details><summary>What do I receive before tooling starts?<\/summary><div class=\"a\"><p>A DFM report on the part model, covering wall thickness, draft, clip design and the cosmetic faces.<\/p><\/div><\/details><details><summary>How is fitment confirmed before production?<\/summary><div class=\"a\"><p>A prototype or trial sample is fitted on the vehicle or against the original part, and we check gaps, flushness and clip engagement.<\/p><\/div><\/details><\/div><\/section>\n<section id=\"start-a-vehicle-specific-project\" class=\"ctab\"><div class=\"c\"><h2>Start a Vehicle-specific&nbsp;Project<\/h2><p class=\"ctat\">Tell us the vehicle, the part and your market. Send photos, a drawing or a sample to start.<\/p><div class=\"btns\"><a class=\"btn btn-r\" href=\"\/contact\/\">Start Your Project \u2192<\/a><a class=\"btn btn-o\" href=\"\/sourcing-solutions\/\">Open the Sourcing Advisor<\/a><\/div><\/div><\/section>\n<\/div>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"Service\", \"name\": \"Vehicle-specific auto parts development\", \"serviceType\": \"Vehicle-specific auto parts development\", \"description\": \"Develop vehicle-specific exterior parts and custom wheel center caps from your drawings or samples: 3D scanning, prototype fit, tooling and approved samples.\", \"url\": \"https:\/\/yiroxautoparts.com\/services\/vehicle-specific-development\/\", \"areaServed\": \"Worldwide\", \"provider\": {\"@type\": \"Organization\", \"name\": \"Yirox\", \"url\": \"https:\/\/yiroxautoparts.com\/\", \"foundingDate\": \"2010\", \"address\": {\"@type\": \"PostalAddress\", \"addressLocality\": \"Wuxi\", \"addressCountry\": \"CN\"}}}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Can you make a part to fit a specific vehicle model and year?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. We confirm the make, model, model years and market version, then measure and 3D scan the original part or vehicle before design.\"}}, {\"@type\": \"Question\", \"name\": \"Can you develop custom wheel center caps from a sample?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Send a cap, the wheel or a drawing and we will measure the bore and retention points and develop a matching cap.\"}}, {\"@type\": \"Question\", \"name\": \"Can you add my logo to center caps?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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PPAP documentation is available up to Level 3, along with weathering test reports and recycled-content statements on request.\"}}, {\"@type\": \"Question\", \"name\": \"Who owns the mold for a vehicle-specific part?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Mold ownership is agreed per project before tooling starts.\"}}, {\"@type\": \"Question\", \"name\": \"Do I need a separate mold for each vehicle?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Usually yes for parts that sit against body lines or use original mounting points, such as front lips, diffusers, grilles and center caps. Some trims and mud flaps can be designed as universal parts that cover several vehicles with one mold.\"}}, {\"@type\": \"Question\", \"name\": \"Can you develop a part if I only have photos?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Photos and key dimensions are enough for an early feasibility review. Before tooling, we confirm the design with an original part, a 3D file or access to a vehicle so the fit can be checked.\"}}, {\"@type\": \"Question\", \"name\": \"What do I receive before tooling starts?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A DFM report on the part model, covering wall thickness, draft, clip design and the cosmetic faces.\"}}, {\"@type\": \"Question\", \"name\": \"How is fitment confirmed before production?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A prototype or trial sample is fitted on the vehicle or against the original part, and we check gaps, flushness and clip engagement.\"}}]}]}<\/script>\n<dialog class=\"yxq\" id=\"yxq\" aria-labelledby=\"yxq-t\"><div class=\"yxq-h\"><h2 id=\"yxq-t\">Request a Quote<\/h2><p>Tell us the part, vehicle and quantity. 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