Dynamic Friction 631-80000L Disc Brake Rotor - Rear Left
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Dynamic Friction
 DFC Brake Rotor - Drilled and Slotted - Silver

Dynamic Friction 631-80000L Disc Brake Rotor - Rear Left

Brand Dynamic Friction 631-80000L
Position Rear Left
Discard Thickness 9
Nominal Thickness 10
Disc Finish Plain
Hat Finish Zinc silver
Rust Resistant Coating Yes
Bolt Hole Quantity 4
Overall Height 72
Outside Diameter 236
Height 72
Surface Type Slotted x drilled
Solid Or Vented Type Rotor Solid
Center Hole Diameter 47.8
Stud/Lug Hole Quantity 4
Stud/Lug Hole Diameter 12.5
Directional or Non-Directional Brake Surface Directional
Bolt Circle Diameter 110
Stud/Lug Hole Circle Diameter 110
Product line DFC Brake Rotor - Drilled and Slotted - Silver
Fits Mazda · 5 vehicles

Slotted and drilled. Surface design promotes even pad contact during brake service.

Rust-resistant finish. Zinc silver hat coating helps protect exposed rotor surfaces.

Directional surface. Engineered for consistent braking performance and pad interaction.

$73.72Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Disc Brake Rotors are typically replaced in pairs, axle by axle.
Order total $73.72
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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Brake Rotor Overview

This Dynamic Friction disc brake rotor is built for specific Mazda RX-7 rear left applications and carries part number 631-80000L. It uses a slotted and drilled surface with a zinc silver hat finish and rust-resistant coating for a clean, service-ready appearance.

Key Features

  • Slotted and drilled rotor surface for consistent brake pad contact.
  • Solid rotor construction with a directional braking surface.
  • Rust-resistant coating and zinc silver hat finish.
  • 4-lug pattern with 110 mm bolt circle and 47.8 mm center hole.
  • Disc brake rotor from Dynamic Friction, part number 631-80000L.

Fitment Details

Fits 1981-1983 Mazda RX-7, rear left. Fits 1984-1985 Mazda RX-7, rear left, 12A engine.

This part cross-references no listed interchange numbers for the same application.

What It Is Used For

  • Replacing a worn or scored rear brake rotor.
  • Restoring braking surface consistency on a Mazda RX-7.
  • Addressing rotor rust on the hat or exposed surfaces.
  • Correcting brake pulsation caused by rotor wear.

Installation Notes and Tips

Verify rotor dimensions, bolt circle, and center hole diameter before installation. Confirm rear left fitment and engine note for 1984-1985 Mazda RX-7 applications. Part number 631-80000L should be matched to the vehicle’s brake setup before service.

Quality Assurance

Dynamic Friction identifies this rotor as part of its DFC Brake Rotor - Drilled and Slotted - Silver line, which combines a drilled-and-slotted surface with corrosion-resistant finishing for brake service applications.

Related reading

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
1985MazdaRX-7GSLRear Left12A Engine; DFC Brake Rotor - Drilled and Slotted - Silver
1984MazdaRX-7GSLRear Left12A Engine; DFC Brake Rotor - Drilled and Slotted - Silver
1983MazdaRX-7—Rear LeftDFC Brake Rotor - Drilled and Slotted - Silver
1982MazdaRX-7—Rear LeftDFC Brake Rotor - Drilled and Slotted - Silver
1981MazdaRX-7—Rear LeftDFC Brake Rotor - Drilled and Slotted - Silver