{"product_id":"dynamic-friction-631-80000r-disc-brake-rotor-rear-right","title":"Dynamic Friction 631-80000R Disc Brake Rotor - Rear Right","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe Dynamic Friction 631-80000R is a disc brake rotor built for specific Mazda RX-7 rear right applications. It features a slotted and drilled surface, a solid rotor design, and a zinc silver hat finish with rust-resistant coating for added corrosion protection.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSlotted and drilled brake surface for consistent pad contact and heat management.\u003c\/li\u003e\n\u003cli\u003eSolid rotor construction with a directional surface design.\u003c\/li\u003e\n\u003cli\u003eZinc silver hat finish with rust-resistant coating.\u003c\/li\u003e\n\u003cli\u003ePlain disc finish with 4-bolt and 4-lug hole layout.\u003c\/li\u003e\n\u003cli\u003ePart number 631-80000R for application matching and catalog lookup.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dynamic Friction brake rotor is engineered for rear right fitment on 1981-1985 Mazda RX-7 models, including 1984-1985 vehicles with the 12A engine. The 631-80000R uses a slotted X drilled surface and a solid rotor profile, with a 236 mm outside diameter, 47.8 mm center hole diameter, and 110 mm bolt circle. The zinc silver hat finish and rust-resistant coating add protection against surface corrosion, while the directional braking surface supports consistent rotor operation. For buyers searching for a Mazda RX-7 rear brake rotor or a 631-80000R replacement, this part matches the listed application data directly.\u003c\/p\u003e\u003ch2\u003eCommon Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a worn rear brake rotor on a Mazda RX-7.\u003c\/li\u003e\n\u003cli\u003eAddressing rotor scoring, grooves, or uneven braking feel.\u003c\/li\u003e\n\u003cli\u003eRestoring braking performance after heat-related rotor wear.\u003c\/li\u003e\n\u003cli\u003eMatching a rear right rotor application with the correct bolt pattern and dimensions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify the rear right position, bolt circle, center hole diameter, and rotor dimensions before installation. Confirm the vehicle year and engine note for 1984-1985 Mazda RX-7 applications. Use the part number 631-80000R to confirm catalog match before ordering.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDynamic Friction supplies brake components for replacement use, and this rotor is built with corrosion-resistant finishing details to support long-term service in the listed application.\u003c\/p\u003e","brand":"Dynamic Friction","offers":[{"title":"Default Title","offer_id":53526605758645,"sku":"HBHR-631-80000R","price":73.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_63180000R_Fro.jpg?v=1792047461","url":"https:\/\/www.partcatalog.com\/products\/dynamic-friction-631-80000r-disc-brake-rotor-rear-right","provider":"PartCatalog","version":"1.0","type":"link"}