{"product_id":"durago-br901540-disc-brake-rotor","title":"DuraGo BR901540 Disc Brake Rotor - Rear","description":"\u003ch2\u003eOverview of DuraGo BR901540 Disc Brake Rotor\u003c\/h2\u003e\u003cp\u003eThe DuraGo BR901540 is a vented disc brake rotor designed specifically for various BMW models including the 328i, 330i, 335i, 340i, 428i, 430i, 435i, 440i, and ActiveHybrid 3. Engineered with full cast iron construction, this rotor provides reliable braking performance tailored to your vehicle's specifications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaterial: Durable cast iron for consistent heat dissipation\u003c\/li\u003e\n\u003cli\u003eVented rotor design to improve cooling and reduce brake fade\u003c\/li\u003e\n\u003cli\u003eDrum-in-hat construction for integrated parking brake functionality\u003c\/li\u003e\n\u003cli\u003eOutside diameter of 12.99 inches (330 mm) for precise fitment\u003c\/li\u003e\n\u003cli\u003eMounting bolt pattern: 5 holes with 4.72 inch (120 mm) bolt circle diameter\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 0.79 inches (20 mm) with discard thickness at 0.72 inches (18.4 mm)\u003c\/li\u003e\n\u003cli\u003eNon-directional brake surface for versatile installation\u003c\/li\u003e\n\u003cli\u003eCenter hole diameter of 2.95 inches (75 mm) for secure mounting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe DuraGo BR901540 disc brake rotor is constructed from full cast iron, a material known for its strength and thermal stability. This rotor features a vented design that allows air to flow between the rotor surfaces, helping to dissipate heat more effectively during braking. The drum-in-hat construction integrates a parking brake drum within the rotor, eliminating the need for a separate drum brake assembly. With an outside diameter of 12.99 inches and a mounting bolt pattern of 5 holes spaced on a 4.72 inch bolt circle, this rotor is engineered to fit a wide range of BMW models including the 328i, 330i, 335i, 340i, 428i, 430i, 435i, 440i, and ActiveHybrid 3 variants. The nominal thickness of 0.79 inches ensures durability, while the discard thickness of 0.72 inches indicates when replacement is necessary to maintain safe braking performance.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rotors causing brake pulsation\u003c\/li\u003e\n\u003cli\u003eAddressing reduced braking efficiency due to rotor overheating\u003c\/li\u003e\n\u003cli\u003eResolving noise issues related to uneven rotor surfaces\u003c\/li\u003e\n\u003cli\u003eUpgrading to a vented rotor for improved heat management\u003c\/li\u003e\n\u003cli\u003eEnsuring compatibility with drum-in-hat parking brake systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify rotor dimensions and bolt pattern against your BMW model before installation\u003c\/li\u003e\n\u003cli\u003eInspect brake pads and hardware for wear and replace if necessary\u003c\/li\u003e\n\u003cli\u003eClean rotor mounting surface to ensure proper fit and avoid vibration\u003c\/li\u003e\n\u003cli\u003eTorque mounting bolts to manufacturer specifications to prevent rotor warping\u003c\/li\u003e\n\u003cli\u003ePerform a bed-in procedure after installation to optimize braking performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDuraGo brake rotors are manufactured to meet or exceed OEM specifications, ensuring reliable performance and safety. The BR901540 rotor undergoes rigorous quality control to maintain consistent thickness and structural integrity. While specific warranty details may vary, DuraGo typically offers coverage against manufacturing defects. Consult product documentation or your supplier for exact warranty terms.\u003c\/p\u003e","brand":"DuraGo","offers":[{"title":"Default Title","offer_id":43588672094389,"sku":"GVMP-BR901540","price":57.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/PR_BR901540_Fro.jpg?v=1774635160","url":"https:\/\/www.partcatalog.com\/products\/durago-br901540-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}