Dynamic Friction
DFC Brake Rotor - Drilled and Slotted - Silver

Dynamic Friction 631-80008L Disc Brake Rotor - Rear Left

Brand Dynamic Friction 631-80008L
Position Rear Left
Discard Thickness 18
Nominal Thickness 20
Disc Finish Plain
Hat Finish Zinc silver
Rust Resistant Coating Yes
Bolt Hole Quantity 4
Overall Height 62.8
Outside Diameter 257
Height 62.8
Surface Type Slotted x drilled
Solid Or Vented Type Rotor Vented
Center Hole Diameter 66
Stud/Lug Hole Quantity 4
Stud/Lug Hole Diameter 12.5
Directional or Non-Directional Brake Surface Directional
Bolt Circle Diameter 114.3
Stud/Lug Hole Circle Diameter 114.3
Product line DFC Brake Rotor - Drilled and Slotted - Silver
Fits Mazda · 2 vehicles

Slotted and drilled. Helps maintain a cleaner pad surface and manage heat during braking.

Rust-resistant finish. Zinc silver hat coating adds corrosion protection and a cleaner appearance.

Vented construction. Promotes airflow through the rotor for more consistent braking performance.

$86.44Free 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 $86.44
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Overview

This Dynamic Friction disc brake rotor is built for a specific rear-left application and features a slotted, drilled surface with a vented design. The zinc silver hat finish and rust-resistant coating add corrosion protection, while the directional braking surface supports consistent pad contact.

Fits 1984-1985 Mazda RX-7, rear left. Part number 631-80008L is the reference for this application and should be matched carefully before ordering.

Key Features

  • Slotted and drilled rotor surface for improved heat management and pad cleaning.
  • Vented rotor construction for better airflow through the braking surface.
  • Zinc silver hat finish with rust-resistant coating for added corrosion protection.
  • Directional braking surface for a defined rotation pattern.
  • 4-lug bolt pattern with 114.3 mm bolt circle and 66 mm center hole.

Detailed Description

The Dynamic Friction 631-80008L is a disc brake rotor engineered for the rear-left position on the Mazda RX-7. Its slotted X drilled surface and vented construction are suited to braking systems that benefit from additional heat dissipation and a cleaner pad interface. The plain disc finish is paired with a zinc silver hat finish and rust-resistant coating to help preserve appearance and resist corrosion in service.

For buyers searching for a Mazda RX-7 rear left brake rotor, 631-80008L provides the key dimensional and design details needed for a direct application match. The 4-bolt pattern, 114.3 mm bolt circle, and 12.5 mm lug hole diameter are important fitment checks before installation.

Common Uses

  • Replacing a worn rear brake rotor on the RX-7.
  • Addressing rotor scoring, grooves, or uneven braking feel.
  • Restoring proper braking surface thickness after wear.
  • Replacing a rotor with corrosion on the hat or braking surface.

Installation Notes

Confirm the rear-left position, 4-lug pattern, 114.3 mm bolt circle, and center hole diameter before installation. Match the rotor to the vehicle’s brake setup and verify discard thickness against service limits. Part number 631-80008L should be checked against the existing rotor and application data for the Mazda RX-7.

Quality Assurance

Dynamic Friction supplies this rotor with a rust-resistant coating and corrosion-protective hat finish for durable service appearance. The slotted, drilled, vented design reflects a performance-oriented brake rotor construction for the specified application.

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
1985MazdaRX-7GSL-SERear Left13B Engine; DFC Brake Rotor - Drilled and Slotted - Silver
1984MazdaRX-7GSL-SERear Left13B Engine; DFC Brake Rotor - Drilled and Slotted - Silver