{"product_id":"durago-br900984-disc-brake-rotor","title":"DuraGo BR900984 Disc Brake Rotor - Rear","description":"\u003ch2\u003eOverview of DuraGo BR900984 Disc Brake Rotor\u003c\/h2\u003e\u003cp\u003eThe DuraGo BR900984 disc brake rotor is engineered for reliable braking performance on select BMW models. Designed with a composite construction featuring a cast iron braking surface and an aluminum hat, this rotor balances durability and weight savings for improved vehicle handling.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComposite construction with cast iron friction surface and aluminum hat\u003c\/li\u003e\n\u003cli\u003eVented rotor design for enhanced heat dissipation\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\u003eOverall diameter of 12.99 inches (330 mm) suitable for specific BMW 5 Series models\u003c\/li\u003e\n\u003cli\u003eFive mounting bolt holes with a 4.72 inch (120 mm) bolt circle diameter\u003c\/li\u003e\n\u003cli\u003eNon-directional brake surface for flexible installation\u003c\/li\u003e\n\u003cli\u003eConventional drum-in-hat type rotor without ABS tone ring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe DuraGo BR900984 rotor is designed specifically for BMW 528i, 528i xDrive, 535d, 535d xDrive, 535i, 535i xDrive, and ActiveHybrid 5 models. Its composite construction combines a durable cast iron braking surface with a lightweight aluminum hat, reducing unsprung weight and improving overall vehicle dynamics. The vented design promotes efficient heat dissipation during braking, helping to maintain consistent stopping power and reduce the risk of brake fade under demanding conditions.\u003c\/p\u003e\u003cp\u003eWith a nominal thickness of 0.79 inches (20 mm) and a discard thickness of 0.72 inches (18.4 mm), this rotor meets OEM specifications for thickness tolerances, ensuring safe and effective braking performance. The rotor’s 12.99 inch (330 mm) outside diameter and five mounting bolt holes with a 4.72 inch (120 mm) bolt circle diameter provide precise fitment for the specified BMW models. The non-directional brake surface allows for flexible installation without concern for rotor orientation.\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 or noise\u003c\/li\u003e\n\u003cli\u003eAddressing reduced braking efficiency due to rotor thickness below discard limits\u003c\/li\u003e\n\u003cli\u003eImproving heat management in braking systems prone to fade during heavy use\u003c\/li\u003e\n\u003cli\u003eRestoring proper rotor dimensions for safe and consistent brake pad contact\u003c\/li\u003e\n\u003cli\u003eEnsuring compatibility with BMW 5 Series models requiring vented, conventional rotors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify rotor thickness before installation to ensure it meets minimum discard thickness\u003c\/li\u003e\n\u003cli\u003eClean mounting surfaces and hub to prevent rotor runout and vibration\u003c\/li\u003e\n\u003cli\u003eTorque mounting bolts to manufacturer specifications for secure fitment\u003c\/li\u003e\n\u003cli\u003eCheck brake pads for wear and replace if necessary to optimize braking performance\u003c\/li\u003e\n\u003cli\u003ePerform a bed-in procedure after installation to ensure proper rotor and pad mating\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDuraGo rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The BR900984 rotor undergoes rigorous quality control to ensure consistent thickness, balance, and material integrity. While specific warranty details may vary, DuraGo typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.\u003c\/p\u003e","brand":"DuraGo","offers":[{"title":"Default Title","offer_id":43585233158325,"sku":"GVMP-BR900984","price":116.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/PR_BR900984_Fro.jpg?v=1774635074","url":"https:\/\/www.partcatalog.com\/products\/durago-br900984-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}