{"product_id":"mr129-type-b-sentinel-side-skirts-mercedes-benz-r129-pre-facelift-1989-1995-digital-stl-file","title":"MR129 Type B – Sentinel Side Skirts | Mercedes-Benz R129 Pre-Facelift (1989–1995) — Digital STL File","description":"\u003cp\u003e\u003cstrong\u003ePresence through proportion. A stronger, lower profile designed to carry the Sentinel character across the entire R129.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eMR129 Type B – Sentinel Side Skirts\u003c\/strong\u003e extend the bold, substantial design language of the Sentinel series along the sides of the Mercedes-Benz R129.\u003c\/p\u003e\n\u003cp\u003eDesigned specifically for \u003cstrong\u003e1989–1995 Pre-Facelift R129 models\u003c\/strong\u003e, the Sentinel Side Skirts visually lower the body and add greater depth through broad surfaces, balanced proportions, and clean transitions that complement the original Mercedes-Benz shape.\u003c\/p\u003e\n\u003cp\u003eRather than relying on sharp edges, exaggerated fins, or race-inspired details, the Type B philosophy creates presence through \u003cstrong\u003evisual mass and proportion\u003c\/strong\u003e. The result is a more planted and muscular profile while preserving the timeless character of the R129.\u003c\/p\u003e\n\u003cp\u003ePaired with the \u003cstrong\u003eType B – Sentinel Front Lip\u003c\/strong\u003e, the side skirts continue the same design language from front to rear, creating a cohesive appearance across the vehicle.\u003c\/p\u003e\n\u003ch2\u003eDIGITAL STL FILE DOWNLOAD — NO PHYSICAL PRODUCT INCLUDED\u003c\/h2\u003e\n\u003cp\u003eThis listing includes \u003cstrong\u003edownloadable STL files only. No physical product will be shipped.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe files are intended for customers, fabricators, and MR129 partners who wish to manufacture the Sentinel Side Skirts using their own additive-manufacturing equipment.\u003c\/p\u003e\n\u003cp\u003eDeveloped using high-resolution 3D scanning and CAD engineering, the components are designed around the original R129 body geometry for vehicle-specific fitment and consistent proportions.\u003c\/p\u003e\n\u003ch2\u003eTYPE B — BOLD DESIGN PHILOSOPHY\u003c\/h2\u003e\n\u003cp\u003eMR129 Type B represents our \u003cstrong\u003eBold\u003c\/strong\u003e design family.\u003c\/p\u003e\n\u003cp\u003eType B is defined by:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBroad, substantial surfaces\u003c\/li\u003e\n\u003cli\u003eStronger visual proportions\u003c\/li\u003e\n\u003cli\u003eMuscular yet restrained styling\u003c\/li\u003e\n\u003cli\u003eIncreased visual depth without excessive ornamentation\u003c\/li\u003e\n\u003cli\u003eClean integration with the original Mercedes-Benz body\u003c\/li\u003e\n\u003cli\u003eA planted, confident appearance from every angle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Sentinel Side Skirts bring this philosophy to the profile of the R129, connecting the front and rear of the vehicle with a continuous lower visual line.\u003c\/p\u003e\n\u003ch2\u003eDIGITAL FILE FEATURES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDownloadable STL files\u003c\/li\u003e\n\u003cli\u003eOriginal MR129 Type B – Sentinel design\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for 1989–1995 R129 Pre-Facelift models\u003c\/li\u003e\n\u003cli\u003eDesigned around factory R129 body geometry\u003c\/li\u003e\n\u003cli\u003eDeveloped using high-resolution 3D scanning and CAD engineering\u003c\/li\u003e\n\u003cli\u003eMulti-piece design optimized for additive manufacturing\u003c\/li\u003e\n\u003cli\u003eDesigned to complement the Type B – Sentinel Front Lip\u003c\/li\u003e\n\u003cli\u003eAdds visual depth and a lower appearance while preserving the character of the original body\u003c\/li\u003e\n\u003cli\u003eFiles can be printed, assembled, finished, and painted for the desired application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRECOMMENDED PRINTING MATERIALS\u003c\/h2\u003e\n\u003cp\u003eRecommended materials include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eASA\u003c\/li\u003e\n\u003cli\u003eCarbon Fiber PETG\u003c\/li\u003e\n\u003cli\u003eABS\u003c\/li\u003e\n\u003cli\u003eOther suitable automotive-grade engineering materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMaterial selection, print orientation, wall thickness, infill, joining method, reinforcement, and finishing process should be determined by the fabricator based on the intended application and printing equipment.\u003c\/p\u003e\n\u003ch2\u003eASSEMBLY \u0026amp; INSTALLATION\u003c\/h2\u003e\n\u003cp\u003eThe supplied files are designed as a multi-piece assembly suitable for manufacturing on appropriately sized 3D printers.\u003c\/p\u003e\n\u003cp\u003ePrinted components must be properly assembled, reinforced where appropriate, test-fitted, and finished before installation.\u003c\/p\u003e\n\u003cp\u003eProfessional fabrication and installation are recommended.\u003c\/p\u003e\n\u003cp\u003eAlways test-fit the complete assembly on the vehicle before final finishing or painting.\u003c\/p\u003e\n\u003ch2\u003eVEHICLE COMPATIBILITY\u003c\/h2\u003e\n\u003cp\u003eDesigned for \u003cstrong\u003e1989–1995 Mercedes-Benz R129 Pre-Facelift models\u003c\/strong\u003e, including applicable:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e300SL\u003c\/li\u003e\n\u003cli\u003e300SL-24\u003c\/li\u003e\n\u003cli\u003e500SL\u003c\/li\u003e\n\u003cli\u003e600SL\u003c\/li\u003e\n\u003cli\u003eSL320\u003c\/li\u003e\n\u003cli\u003eSL500\u003c\/li\u003e\n\u003cli\u003eSL600\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease verify your vehicle configuration before purchasing.\u003c\/p\u003e\n\u003ch2\u003eDIGITAL PRODUCT NOTICE\u003c\/h2\u003e\n\u003cp\u003eThis is a \u003cstrong\u003edigital product\u003c\/strong\u003e. No physical item will be shipped.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of downloadable digital files, please verify compatibility before purchasing.\u003c\/p\u003e\n\u003cp\u003eThe STL files and underlying design remain the intellectual property of MR129. Purchase grants the purchaser a license for personal fabrication and use only unless separate commercial manufacturing rights have been expressly granted by MR129.\u003c\/p\u003e\n\u003cp\u003eFiles may not be redistributed, resold, shared, uploaded, sublicensed, or otherwise transferred to third parties.\u003c\/p\u003e\n\u003ch2\u003eIMPORTANT NOTICE — OFF-ROAD USE ONLY\u003c\/h2\u003e\n\u003cp\u003eThis design is intended for \u003cstrong\u003eoff-road and show use only\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003ePrinting, fabrication, assembly, finishing, installation, modification, and use of the finished product are the responsibility of the purchaser and installer.\u003c\/p\u003e\n\u003cp\u003eBy purchasing this digital product, you acknowledge and agree to the applicable \u003cstrong\u003eMR129 Terms \u0026amp; Conditions, digital-file licensing terms, installation requirements, and product disclaimers\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eMR129 is an independent aftermarket design brand and is not affiliated with, endorsed by, or sponsored by Mercedes-Benz or its respective trademark owners.\u003c\/p\u003e","brand":"MR129.COM","offers":[{"title":"Pre Split Model (10-12 pcs) for 240x240x240mm","offer_id":67600371974204,"sku":null,"price":35.0,"currency_code":"USD","in_stock":true},{"title":"Uncut (1 piece) for Large Format","offer_id":67600379904060,"sku":null,"price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/7639\/4044\/files\/rn-image_picker_lib_temp_c713b164-fdf7-41a0-a663-78f001cb4f89.jpg?v=1790815160","url":"https:\/\/www.mr129.com\/products\/mr129-type-b-sentinel-side-skirts-mercedes-benz-r129-pre-facelift-1989-1995-digital-stl-file","provider":"MR129.COM","version":"1.0","type":"link"}