{"product_id":"durago-br900804-disc-brake-rotor","title":"DuraGo BR900804 Disc Brake Rotor - Rear","description":"\u003ch2\u003eDurable Cast Iron Disc Brake Rotor for Audi S4 and S5\u003c\/h2\u003e\u003cp\u003eThe DuraGo BR900804 disc brake rotor is engineered to provide reliable braking performance for Audi S4 and S5 models. Constructed from full cast iron, this vented rotor offers consistent heat dissipation and durability under demanding driving conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaterial: Full cast iron construction for strength and heat resistance\u003c\/li\u003e\n\u003cli\u003eVented design to improve cooling and reduce brake fade\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 0.87 inches (22 mm) with discard thickness at 0.79 inches (20 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter of 12.99 inches (330 mm) suitable for specified Audi models\u003c\/li\u003e\n\u003cli\u003eFive mounting bolt holes with a 4.41 inch (112 mm) bolt circle diameter\u003c\/li\u003e\n\u003cli\u003eNon-directional brake surface for flexible installation\u003c\/li\u003e\n\u003cli\u003eConventional rotor type without ABS tone ring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe DuraGo BR900804 rotor features a solid, full cast iron construction designed to withstand the thermal stresses of braking. Its vented design allows air to flow between the rotor surfaces, enhancing heat dissipation and reducing the risk of warping during heavy braking. The rotor measures 12.99 inches (330 mm) in outside diameter and has an overall height of 1.43 inches (36.2 mm). The nominal thickness is 0.87 inches (22 mm), with a discard thickness of 0.79 inches (20 mm), ensuring clear service limits for maintenance. This rotor includes five mounting bolt holes with a 0.6 inch (15.2 mm) diameter and a bolt circle diameter of 4.41 inches (112 mm), matching the factory specifications for Audi S4 and S5 vehicles. The non-directional brake surface allows for installation on either side without performance loss.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis disc brake rotor is compatible with the following Audi models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAudi S4\u003c\/li\u003e\n\u003cli\u003eAudi S5\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is designed to replace worn or damaged rotors and restore proper braking function. Common issues addressed by this rotor include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrake rotor warping or uneven wear\u003c\/li\u003e\n\u003cli\u003eReduced braking efficiency due to thin or damaged rotors\u003c\/li\u003e\n\u003cli\u003eExcessive brake noise or vibration\u003c\/li\u003e\n\u003cli\u003eOverheating and brake fade during heavy use\u003c\/li\u003e\n\u003cli\u003eCorrosion-related rotor surface degradation (note: this rotor does not have a rust-resistant coating)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the DuraGo BR900804 rotor, ensure the following:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVerify rotor thickness is above discard limits before installation\u003c\/li\u003e\n\u003cli\u003eClean the rotor surface to remove any protective coatings or contaminants\u003c\/li\u003e\n\u003cli\u003eCheck compatibility with existing brake pads and hardware\u003c\/li\u003e\n\u003cli\u003eTorque mounting bolts to manufacturer specifications\u003c\/li\u003e\n\u003cli\u003ePerform a proper 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 manufactures this rotor to meet or exceed OEM specifications for fit, form, and function. While this rotor does not include a rust-resistant coating, its full cast iron construction provides reliable durability. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.\u003c\/p\u003e","brand":"DuraGo","offers":[{"title":"Default Title","offer_id":43585130856629,"sku":"GVMP-BR900804","price":54.7,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/PR_BR900804_Fro.jpg?v=1774635043","url":"https:\/\/www.partcatalog.com\/products\/durago-br900804-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}