Drilled and Slotted Front Right Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver, part number 631-54015R, is a vented disc brake rotor built for the front right position. It features a slotted X drilled surface, zinc silver hat finish, and a rust resistant coating for a clean, service-ready appearance.

Compatible With Ford Mustang, Mercury Cougar, Ford Thunderbird, Ford LTD, Mercury Capri, Mercury Marquis, Ford Fairmont, and Mercury Zephyr applications listed below, this rotor is sized for 256 mm outside diameter and 108 mm bolt circle fitments. The directional braking surface and vented construction support consistent brake performance in the specified classic Ford and Mercury platforms.

Key Features

• Part number: 631-54015R
• Front right disc brake rotor
• Slotted X drilled surface type
• Vented rotor construction
• Rust resistant coating
• Zinc silver hat finish
• Outside diameter: 256 mm
• Bolt circle diameter: 108 mm
• Bolt hole quantity: 4
• Center hole diameter: 63.8 mm
• Nominal thickness: 22.2 mm
• Discard thickness: 20.6 mm

Product Details

The DFC Brake Rotor - Drilled and Slotted - Silver line focuses on brake rotors with a functional surface design and corrosion-resistant finish. On this rotor, the plain disc finish is paired with a directional, slotted-and-drilled braking surface to match the listed Ford Mustang and Mercury Cougar fitments, along with Thunderbird, Capri, LTD, Marquis, Fairmont, and Zephyr applications. The part number 631-54015R identifies the front right rotor configuration for the vehicles shown in the fitment data.

This part cross-references no listed interchange numbers in the provided data.

What It Is Used For

• Replacing a worn front right brake rotor on listed Ford Mustang applications
• Replacing a front right rotor on listed Mercury Cougar and Mercury Capri vehicles
• Restoring braking surface thickness on classic Ford and Mercury platforms
• Addressing rotor wear, scoring, or heat-related surface damage
• Maintaining proper rotor fitment for 4-lug, 108 mm bolt circle applications

Installation Notes and Fitment

Fits 1983-1993 Ford Mustang, front right.

Fits 1979 Ford Mustang, front right.

Fits 1983-1988 Ford Thunderbird, front right, 9 inch rear drums.

Fits 1981-1988 Ford Thunderbird, front right, rear brake drum with 10 inch diameter.

Fits 1987-1988 Mercury Cougar, front right.

Fits 1980-1982 Mercury Cougar, front right.

Fits 1987-1988 Mercury Cougar, front right, 9 inch.

Fits 1987-1988 Mercury Cougar, front right, 10 inch.

Fits 1983-1986 Ford LTD, front right, Mid Size G Body.

Fits 1983-1986 Mercury Capri, front right.

Fits 1979 Mercury Capri, front right.

Fits 1983-1986 Mercury Cougar, front right, 9 inch rear drums.

Fits 1983-1986 Mercury Cougar, front right, rear brake drum with 10 inch diameter.

Fits 1983-1986 Mercury Marquis, front right, Mid Size Body.

Fits 1978-1983 Ford Fairmont, front right.

Fits 1981-1983 Mercury Zephyr, front right.

Fits 1982-1983 Ford Fairmont, front right, Vehicle Production Date From 11/82.

Fits 1982 Ford Fairmont, front right, Vehicle Production Date To 10/82.

Fits 1982 Ford LTD, front right, Vehicle Production Date To 10/82, Mid Size G Body.

Fits 1982 Ford LTD, front right, Vehicle Production Date From 11/82, Mid Size G Body.

Fits 1982 Ford Mustang, front right, Vehicle Production Date To 11/82, 10 inch rear drums.

Fits 1982 Ford Mustang, front right, Vehicle Production Date from 12/82.

Fits 1982 Ford Mustang, front right, Vehicle Production Date To 11/82, 9 inch rear drums.

Fits 1981-1982 Ford Thunderbird, front right, 9 inch rear drums, 3-1/2 inch tall drums.

Fits 1981-1982 Ford Thunderbird, front right, 9 inch rear drums, 3 inch tall drums.

Fits 1982 Mercury Capri, front right, Vehicle Production Date To 10/82.

Fits 1982 Mercury Capri, front right, Vehicle Production Date From 11/82.

Fits 1982 Mercury Zephyr, front right, Vehicle Production Date To 10/82, excluding Police & Taxi, 9 inch rear drums.

Fits 1982 Mercury Zephyr, front right, Vehicle Production Date From 11/82, excluding Police & Taxi, 9 inch rear drums.

Fits 1982 Mercury Zephyr, front right, Vehicle Production Date From 11/82, 9 inch rear drums.

Fits 1982 Mercury Zephyr, front right, Vehicle Production Date To 10/82, 9 inch rear drums.

Fits 1982 Mercury Zephyr, front right, Vehicle Production Date To 10/82, Police Taxi & Heavy Duty, 10 inch rear drums.

Fits 1982 Mercury Zephyr, front right, Vehicle Production Date From 11/82, Police Taxi & Heavy Duty, 10 inch rear drums.

Fits 1978-1981 Ford Fairmont, front right.

Fits 1981 Ford Fairmont, front right, with Police Package.

Fits 1981 Ford Fairmont, front right, without Police Package.

Fits 1981 Mercury Zephyr, front right, rear brake drum with 10 inch diameter.

Fits 1978-1979 Mercury Zephyr, front right, rear brake drum with 10 inch diameter.

Fits 1980 Ford Thunderbird, front right, 3-1/2 inch tall drums.

Fits 1980 Ford Thunderbird, front right, 3 inch tall drums.

Fits 1980 Mercury Zephyr, front right.

Fits 1980 Mercury Zephyr, front right, Police Taxi & Heavy Duty.

Fits 1980 Mercury Zephyr, front right, excluding Police & Taxi.

Before installation, verify rotor dimensions, bolt pattern, center hole diameter, and vehicle production date against the existing brake setup. Confirm the front right position and the rear drum configuration noted in the fitment data.

Quality Assurance

DFC brake rotors are specified with measured thickness, finish, and corrosion protection details to support accurate parts matching. This rotor is identified by part number 631-54015R for direct catalog reference.