Dynamite Friction 631-54119L Disc Brake Rotor - Front Left

Drilled and Slotted Front Left Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver, part number 631-54119L, is a vented disc brake rotor built for front left applications that call for a 5-lug, 114.3 mm bolt circle. Its slotted X drilled surface, zinc silver hat finish, and rust resistant coating support consistent braking performance and corrosion protection in everyday driving conditions.

For drivers servicing a Ford Ranger, Mazda B3000, Mazda B4000, Ford Explorer, Mazda Navajo, or Ford Bronco II, this rotor provides a direct-fit replacement option for the listed front left positions. The directional brake surface and 276 mm outside diameter are important details for matching the correct brake setup.

• Part number 631-54119L for front left disc brake rotor applications
• Slotted X drilled surface type with directional braking surface
• Vented rotor construction for heat management
• Plain disc finish with zinc silver hat finish
• Rust resistant coating for added surface protection
• 5 bolt holes and 5 stud/lug holes with 114.3 mm bolt circle diameter
• Outside diameter: 276 mm
• Nominal thickness: 22.2 mm; discard thickness: 20.6 mm

Product Line Details

The DFC Brake Rotor - Drilled and Slotted - Silver line focuses on a drilled and slotted rotor design with a silver-finished hat for a clean appearance and corrosion resistance. This rotor is specified for vehicles that require a vented front rotor with the listed dimensions and lug pattern.

Detailed Fitment

• Fits 1992-1994 Ford Ranger, front left, 9 inch rear drums.
• Fits 1992-1994 Ford Ranger, front left, rear brake drum with 10 inch diameter.
• Fits 1994 Mazda B3000, front left, rear brake drum with 10 inch diameter.
• Fits 1994 Mazda B3000, front left, 9 inch rear drums.
• Fits 1994 Mazda B4000, front left, rear brake drum with 10 inch diameter.
• Fits 1994 Mazda B4000, front left, 9 inch rear drums.
• Fits 1991-1992 Ford Explorer, front left, 2.5 inch tall rotors, Dana 35-IFS front axle.
• Fits 1991-1992 Mazda Navajo, front left.
• Fits 1990-1991 Ford Ranger, front left, 9 inch rear drums, Dana 35-TTB front axle, 2.5 inch tall rotors.
• Fits 1990-1991 Ford Ranger, front left, 10 inch rear drums, Dana 35-TTB front axle, 2.5 inch tall rotors.
• Fits 1990 Ford Bronco II, front left, 2.5 inch tall rotors, Dana 35-IFS front axle.

What This Rotor Helps Address

• Brake fade during repeated stops
• Uneven rotor surface wear on the front left side
• Corrosion on exposed rotor and hat surfaces
• Brake vibration caused by worn or out-of-spec rotors
• Replacement needs for the listed Ford and Mazda front brake applications

Installation Notes and Tips

Verify rotor dimensions, bolt pattern, and front left position before installation. This rotor is directional, so install it in the correct orientation for the vehicle side and brake surface direction. Confirm the vehicle’s rear drum and front axle configuration against the fitment notes for Ford Ranger, Ford Explorer, Mazda B3000, Mazda B4000, Mazda Navajo, and Ford Bronco II applications.

Quality Assurance

Dynamite Friction supplies this rotor with a rust resistant coating and zinc silver hat finish to support surface durability. Part number 631-54119L is built to the listed specifications for the confirmed applications above.