{"product_id":"zimmermann-400-3649-52-disc-brake-rotor-front","title":"Zimmermann 400.3649.52 Disc Brake Rotor - Front","description":"\u003ch2\u003eSport Z Front Brake Rotor\u003c\/h2\u003e\u003cp\u003eThe Zimmermann Sport Z brake rotor is built for drivers who want a drilled, coated disc brake rotor with OE-style fitment details and performance-focused construction. It combines a high-quality cast rotor body with a perforated braking surface for improved water and dust evacuation. Fits 2006-2013 Mercedes-Benz GL-Class and M-Class applications listed below, front.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCross-drilled braking surface helps move water and brake dust away from the contact area.\u003c\/li\u003e\n\u003cli\u003eCoated surface adds corrosion resistance and a cleaner visual finish.\u003c\/li\u003e\n\u003cli\u003eECE R90 approved for regulated replacement use.\u003c\/li\u003e\n\u003cli\u003eLarge 350 mm diameter with 32 mm thickness for specified Mercedes-Benz applications.\u003c\/li\u003e\n\u003cli\u003ePart number 400.3649.52 for direct identification and ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Overview\u003c\/h2\u003e\u003cp\u003eZimmermann developed the Sport Z rotor using its brake rotor manufacturing experience and motorsport knowledge. The design pairs a cast iron rotor body with a perforated surface to support consistent braking performance in wet conditions while maintaining a sporty appearance. This rotor is listed for Mercedes-Benz GL550, GL450, GL350, GL320, ML350, ML450, ML550, ML320, ML500, R500, and R550 front applications, including Sport brake system and non-heavy-duty brake configurations where noted. The part number 400.3649.52 is also referenced by multiple interchange numbers for the same application.\u003c\/p\u003e\u003cp\u003eThis part cross-references Brembo (e.g., 09.R103.11) and BBB Industries (e.g., 17791) for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake fade caused by heat buildup during repeated stops.\u003c\/li\u003e\n\u003cli\u003eReduced braking consistency in wet road conditions.\u003c\/li\u003e\n\u003cli\u003eSurface corrosion on exposed rotor faces.\u003c\/li\u003e\n\u003cli\u003eBrake dust accumulation on the rotor surface.\u003c\/li\u003e\n\u003cli\u003eFitment replacement needs for specified Mercedes-Benz front brake applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Quality\u003c\/h2\u003e\u003cp\u003eVerify rotor diameter, thickness, hub bore, bolt circle, and minimum thickness before installation. This rotor is listed for front placement only and includes application notes for Sport brake system and non-heavy-duty brake configurations on select Mercedes-Benz models. Part number 400.3649.52 should be matched to the vehicle’s brake package and fitment notes before ordering.\u003c\/p\u003e\u003cp\u003eZimmermann supplies this rotor with ECE R90 approval and a coated finish for corrosion resistance. The product description also notes general ABE certification or an ECE note supplied with the rotor.\u003c\/p\u003e","brand":"Zimmermann","offers":[{"title":"Default Title","offer_id":53534308270261,"sku":"BKND-400.3649.52","price":178.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ZI_400364952_Fro.jpg?v=1792134393","url":"https:\/\/www.partcatalog.com\/products\/zimmermann-400-3649-52-disc-brake-rotor-front","provider":"PartCatalog","version":"1.0","type":"link"}