Dynamic Friction
DFC Brake Rotor - Drilled and Slotted - Silver

Dynamic Friction 631-80000R Disc Brake Rotor - Rear Right

Brand Dynamic Friction 631-80000R
Position Rear Right
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

Drilled and slotted. Surface design helps maintain consistent pad contact and heat control.

Corrosion protection. Zinc silver hat finish and rust-resistant coating add surface durability.

Application-specific fit. Built for listed Mazda RX-7 rear right brake rotor applications.

$73.72Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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.

Overview

The 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.

Key Features

  • Slotted and drilled brake surface for consistent pad contact and heat management.
  • Solid rotor construction with a directional surface design.
  • Zinc silver hat finish with rust-resistant coating.
  • Plain disc finish with 4-bolt and 4-lug hole layout.
  • Part number 631-80000R for application matching and catalog lookup.

Detailed Description

This 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.

Common Uses

  • Replacing a worn rear brake rotor on a Mazda RX-7.
  • Addressing rotor scoring, grooves, or uneven braking feel.
  • Restoring braking performance after heat-related rotor wear.
  • Matching a rear right rotor application with the correct bolt pattern and dimensions.

Installation Notes

Verify 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.

Quality Assurance

Dynamic 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.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
1985MazdaRX-7GSLRear Right12A Engine; DFC Brake Rotor - Drilled and Slotted - Silver
1984MazdaRX-7GSLRear Right12A Engine; DFC Brake Rotor - Drilled and Slotted - Silver
1983MazdaRX-7—Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
1982MazdaRX-7—Rear RightDFC Brake Rotor - Drilled and Slotted - Silver
1981MazdaRX-7—Rear RightDFC Brake Rotor - Drilled and Slotted - Silver