{"product_id":"dynamic-friction-631-80001l-disc-brake-rotor-front-left","title":"Dynamic Friction 631-80001L Disc Brake Rotor - Front Left","description":"\u003ch2\u003eFront Left Drilled and Slotted Rotor for RX-7\u003c\/h2\u003e\u003cp\u003eThe Dynamic Friction DFC Brake Rotor - Drilled and Slotted - Silver, part number 631-80001L, is a vented disc brake rotor built for the front left position on 1979-1983 Mazda RX-7 models. It combines a slotted X drilled surface with a zinc silver hat finish and rust resistant coating for a clean, service-ready appearance.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 1979-1983 Mazda RX-7, front left\u003c\/li\u003e\n\u003cli\u003ePart number 631-80001L for application-specific lookup\u003c\/li\u003e\n\u003cli\u003eSlotted X drilled brake surface for directional braking performance\u003c\/li\u003e\n\u003cli\u003eVented rotor design with 228 mm outside diameter\u003c\/li\u003e\n\u003cli\u003e17 mm discard thickness and 18 mm nominal thickness\u003c\/li\u003e\n\u003cli\u003eZinc silver hat finish with rust resistant coating\u003c\/li\u003e\n\u003cli\u003e4-bolt, 4-lug design with 110 mm bolt circle diameter\u003c\/li\u003e\n\u003cli\u003e59.3 mm center hole diameter and 100.5 mm overall height\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eThis DFC Brake Rotor line from Dynamic Friction focuses on rotor construction and surface design for direct-fit brake service. The 631-80001L uses a directional slotted and drilled braking surface to support consistent pad contact, while the vented rotor body helps manage heat during repeated stops. For Mazda RX-7 front brake service, the silver zinc hat finish and rust resistant coating help maintain a cleaner rotor appearance over time.\u003c\/p\u003e\u003cp\u003eUse part number 631-80001L when sourcing a front left brake rotor for a 1979-1983 Mazda RX-7. The fitment is specific to the front left position, making it a precise match for RX-7 brake maintenance and rotor replacement work.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFront rotor wear on a 1979-1983 Mazda RX-7\u003c\/li\u003e\n\u003cli\u003eBrake surface scoring or uneven pad contact\u003c\/li\u003e\n\u003cli\u003eHeat buildup during repeated braking\u003c\/li\u003e\n\u003cli\u003eSurface rust on exposed rotor areas\u003c\/li\u003e\n\u003cli\u003eRotor replacement for the front left position\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eConfirm rotor dimensions, bolt pattern, center hole diameter, and position before installation. This rotor is directional, so orientation matters during service. Verify pad condition, hub cleanliness, and brake hardware condition before completing the brake job on a Mazda RX-7. Part number 631-80001L should be matched to the front left application listed in fitment.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eBuilt by Dynamic Friction with a vented rotor design, zinc silver hat finish, and rust resistant coating for consistent brake service on the specified application. This product is identified for 1979-1983 Mazda RX-7 front left fitment.\u003c\/p\u003e","brand":"Dynamic Friction","offers":[{"title":"Default Title","offer_id":52961832042677,"sku":"HBHR-631-80001L","price":111.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_63180001L_Fro.jpg?v=1786511707","url":"https:\/\/www.partcatalog.com\/products\/dynamic-friction-631-80001l-disc-brake-rotor-front-left","provider":"PartCatalog","version":"1.0","type":"link"}