{"product_id":"raybestos-681938r-disc-brake-rotor","title":"Raybestos 681938R Disc Brake Rotor - Rear","description":"\u003ch2\u003eOverview of Raybestos R-Line Disc Brake Rotor 681938R\u003c\/h2\u003e\u003cp\u003eThe Raybestos R-Line Disc Brake Rotor 681938R is engineered for reliable braking performance on Ford Mustang models. Designed as a solid, conventional rotor, it offers precise fitment and consistent stopping power tailored to your vehicle's specifications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Ford Mustang vehicles\u003c\/li\u003e\n\u003cli\u003ePart number 681938R for exact replacement\u003c\/li\u003e\n\u003cli\u003eSolid disc brake rotor with smooth surface finish\u003c\/li\u003e\n\u003cli\u003eOverall diameter of 320 mm (12.598 inches)\u003c\/li\u003e\n\u003cli\u003eMounting bolt hole quantity: 5 with 114.3 mm bolt circle diameter\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 11.3 mm (0.445 inches) and discard thickness of 9.9 mm (0.390 inches)\u003c\/li\u003e\n\u003cli\u003eCenter hole diameter of 71 mm (2.795 inches)\u003c\/li\u003e\n\u003cli\u003eOverall height of 41.5 mm (1.634 inches)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Raybestos R-Line disc brake rotor (part number 681938R) is a solid rotor designed for conventional mounting on Ford Mustang models. The rotor features a smooth surface type that ensures consistent pad contact and braking efficiency. With an outside diameter of 320 mm and a nominal thickness of 11.3 mm, this rotor meets the precise dimensions required for proper fitment and performance. The mounting bolt hole pattern includes five holes spaced on a 114.3 mm bolt circle diameter, matching the Mustang’s factory specifications. The center hole diameter of 71 mm allows for accurate centering on the hub, reducing vibration and promoting even wear.\u003c\/p\u003e\u003ch2\u003eRaybestos R-Line Product Line\u003c\/h2\u003e\u003cp\u003eThe R-Line by Raybestos is a product line focused on delivering reliable, OEM-quality brake components designed to meet or exceed factory specifications. This line emphasizes durability and consistent performance, making it suitable for drivers seeking dependable replacement parts for their Ford Mustang. The 681938R rotor exemplifies the R-Line’s commitment to quality and fitment accuracy.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rotors causing brake pulsation\u003c\/li\u003e\n\u003cli\u003eRestores braking performance affected by rotor thickness below discard limits\u003c\/li\u003e\n\u003cli\u003eEliminates noise and vibration from uneven rotor surfaces\u003c\/li\u003e\n\u003cli\u003eAddresses rotor damage from corrosion or scoring\u003c\/li\u003e\n\u003cli\u003eEnsures proper fitment for Ford Mustang brake systems requiring 5-bolt mounting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify rotor thickness before installation; discard thickness is 9.9 mm\u003c\/li\u003e\n\u003cli\u003eEnsure mounting surface and hub are clean to prevent runout\u003c\/li\u003e\n\u003cli\u003eTorque mounting bolts to manufacturer specifications for secure fitment\u003c\/li\u003e\n\u003cli\u003eInspect brake pads and replace if worn to maintain optimal braking\u003c\/li\u003e\n\u003cli\u003ePerform a bed-in procedure after installation for best braking performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eRaybestos R-Line rotors are manufactured to meet strict quality standards, ensuring consistent dimensions and material integrity. While specific warranty details for part number 681938R should be confirmed with the supplier, Raybestos typically offers coverage against defects in materials and workmanship. This rotor is designed to provide reliable service life when installed and maintained according to vehicle manufacturer guidelines.\u003c\/p\u003e","brand":"Raybestos","offers":[{"title":"Default Title","offer_id":44447095095477,"sku":"BDBL-681938R","price":54.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RS_681938R_Fro.jpg?v=1774636684","url":"https:\/\/www.partcatalog.com\/products\/raybestos-681938r-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}