Dynamic Friction 633-54278L Disc Brake Rotor - Rear Left

Drilled and Slotted Rear Left Rotor

The Dynamic Friction DFC Brake Rotor - Drilled and Slotted - Black, part number 633-54278L, is a rear left disc brake rotor built for select Ford Explorer, Ford Mustang, and Lincoln Aviator applications. It combines a slotted X drilled surface with a black zinc hat finish and rust-resistant coating for a clean, service-ready appearance.

Key Features

• Part number 633-54278L for rear left brake service
• 350 mm outside diameter with 39.65 mm height
• Directional slotted X drilled braking surface
• Plain disc finish with zinc black hat finish
• Rust resistant coating for added corrosion protection
• 5-lug design with 114.3 mm bolt circle diameter
• Nominal thickness: 26 mm; discard thickness: 24.5 mm

Product Line Details

The DFC Brake Rotor - Drilled and Slotted - Black line is built for drivers who want a performance-style rotor with a black-coated hat and a directional surface pattern. This rotor is sized for rear left fitments on late-model Ford and Lincoln platforms, including Ford Explorer, Ford Mustang, and Lincoln Aviator applications that use the listed brake configurations.

Detailed Description

Designed as a direct-fit disc brake rotor for the rear left position, 633-54278L uses a 350 mm rotor diameter, 71.04 mm center hole diameter, and 15.7 mm bolt hole diameter. The directional slotted X drilled surface is intended to maintain consistent brake contact characteristics, while the rust-resistant coating and black zinc hat finish help preserve the rotor’s appearance in everyday driving conditions. This rotor is listed for 2020-2026 Ford Explorer, 2024-2025 Ford Mustang, and 2020-2025 Lincoln Aviator rear left applications, depending on brake package.

What It Helps Address

• Brake rotor wear at the rear left wheel position
• Surface corrosion on exposed rotor hat areas
• Uneven braking feel from a worn or damaged rotor
• Noise or vibration associated with rotor replacement intervals
• Brake service needs on Ford Explorer, Ford Mustang, and Lincoln Aviator models

Installation Notes and Tips

Verify rotor diameter, brake package, and rear left position before installation. This part fits 2025-2026 Ford Explorer, rear left; 2024-2025 Ford Mustang, rear left; 2022-2025 Lincoln Aviator, rear left; 2024 Ford Explorer, rear left; 2023 Ford Explorer, rear left; 2020-2021 Ford Explorer, rear left; 2021-2022 Ford Explorer, rear left; 2020-2021 Lincoln Aviator, rear left; and 2020 Ford Explorer, rear left, with the brake configurations listed in the fitment data. Confirm the rotor meets the vehicle’s nominal and discard thickness requirements before service. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

Dynamic Friction identifies this rotor with a rust-resistant coating and a black zinc hat finish for corrosion protection and consistent appearance. Part number 633-54278L is specified for confirmed rear left fitments only, so matching the brake package and rotor dimensions is essential for proper service.