{"product_id":"zimmermann-400-3670-20-disc-brake-rotor-front","title":"Zimmermann 400.3670.20 Disc Brake Rotor - Front","description":"\u003ch2\u003eBrake Rotor Overview\u003c\/h2\u003e\u003cp\u003eThe Zimmermann 400.3670.20 is a coated disc brake rotor built for heavy-duty front brake applications on select Mercedes-Benz SUVs and crossovers. It combines an internally vented design with high-carbon machining and OE-level dimensions for consistent braking performance.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eInternally vented brake disc design for improved heat management.\u003c\/li\u003e\n\u003cli\u003eCoated surface helps resist corrosion and keeps the rotor looking cleaner.\u003c\/li\u003e\n\u003cli\u003eHigh-carbon machining supports stable braking under load.\u003c\/li\u003e\n\u003cli\u003eOE-specified dimensions for proper rotor fit and function.\u003c\/li\u003e\n\u003cli\u003eFits front brake applications on select Mercedes-Benz GL350, GL450, GL320, and ML550 models.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eZimmermann manufactures the 400.3670.20 to match the dimensions and material quality specified by vehicle manufacturers for standard replacement use. This rotor features a 375 mm outer diameter, 32 mm thickness, 29.4 mm minimum thickness, 54.5 mm height, 67 mm hub bore, and an 8\/5 hole arrangement with a 112 mm bolt circle. The coated finish adds corrosion resistance, while the internally vented construction helps manage heat during repeated stops. This part number 400.3670.20 is a direct fit for front brake service on Mercedes-Benz GL350, GL450, GL320, and ML550 applications listed below.\u003c\/p\u003e\u003cp\u003eZimmermann’s Coat Z anti-corrosion coating line was introduced to improve surface protection and visual appearance on replacement brake rotors. For buyers looking for a Mercedes-Benz brake rotor that follows OE-style sizing and finish standards, the 400.3670.20 offers a practical replacement option. This part cross-references Brembo (e.g., 09.R105.11) and BBB Industries (e.g., 17833) for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake pulsation caused by worn or out-of-spec rotors.\u003c\/li\u003e\n\u003cli\u003eReduced stopping consistency from heat buildup.\u003c\/li\u003e\n\u003cli\u003eCorrosion on exposed rotor surfaces.\u003c\/li\u003e\n\u003cli\u003eFitment issues from incorrect diameter, bore, or thickness.\u003c\/li\u003e\n\u003cli\u003eNoise or uneven braking linked to rotor wear.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify rotor dimensions, hub bore, bolt pattern, and minimum thickness before installation. This rotor is listed for front position use only and includes a heavy-duty brake note on select GL350 and GL320 applications. Confirm vehicle-specific brake package details before ordering to ensure correct fitment.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eZimmermann standard rotors are produced as equivalent-quality replacement parts aligned with original-fit specifications under EU motor vehicle block exemption standards. The coated finish is part of Zimmermann’s anti-corrosion rotor program.\u003c\/p\u003e","brand":"Zimmermann","offers":[{"title":"Default Title","offer_id":53534299095221,"sku":"BKND-400.3670.20","price":161.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ZI_400367020_Fro.jpg?v=1792132598","url":"https:\/\/www.partcatalog.com\/products\/zimmermann-400-3670-20-disc-brake-rotor-front","provider":"PartCatalog","version":"1.0","type":"link"}