Dynamite Friction 631-40057L Disc Brake Rotor - Front Left

Drilled and Slotted Front Left Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver, part number 631-40057L, is a vented disc brake rotor for the front left position. It is built with a slotted X drilled surface, a zinc silver hat finish, and a rust resistant coating for service in demanding brake systems.

Compatible with select Dodge Ramcharger, Dodge W150, and Dodge W100 front left applications, this rotor is sized for vehicles using a 296 mm outside diameter, 101.6 mm center hole diameter, and 5-lug, 139.7 mm bolt circle layout. The directional braking surface and vented construction support consistent rotor performance in the specified fitments.

Key Features

• Part number 631-40057L
• Front left disc brake rotor
• Slotted X drilled surface type
• Vented rotor construction
• Zinc silver hat finish with rust resistant coating
• 5 bolt holes and 5 stud/lug holes
• 296 mm outside diameter
• Directional brake surface
• Plain disc finish

Product Line Details

The DFC Brake Rotor - Drilled and Slotted - Silver line from Dynamite Friction focuses on rotor service parts with a drilled and slotted braking surface and corrosion-resistant finish details. This rotor follows that format with a silver zinc hat and vented design for the listed Dodge truck and SUV applications.

Detailed Description

Built for front left brake service, the Dynamite Friction 631-40057L rotor is specified for 1980-1993 Dodge Ramcharger, 1980-1993 Dodge W150, and 1986-1989 Dodge W100 applications listed below. It uses a 31.6 mm nominal thickness and 29.8 mm discard thickness, with a 66.4 mm overall height and 16.4 mm bolt hole diameter. The rotor’s 139.7 mm bolt circle and 101.6 mm center hole diameter match the confirmed fitment data for these vehicles.

This rotor is a direct replacement style disc brake rotor for the front left side on select Dodge Ramcharger and Dodge pickup configurations. Part number 631-40057L is listed for vehicles with rotor-only service needs, including applications noted with locking hubs and rear drum configuration details.

Vehicle Fitment

• Fits 1982-1993 Dodge Ramcharger, front left. Includes rotor only, not hubs, for listed applications.
• Fits 1986-1993 Dodge W150, front left. Rotor only.
• Fits 1982-1983 Dodge W150, front left. Rotor only.
• Fits 1986-1989 Dodge W100, front left. Rotor only.
• Fits 1984-1985 Dodge W150, front left. 10 inch rear drums; rotor only.
• Fits 1984-1985 Dodge W150, front left. 11 inch rear drums; rotor only.
• Fits 1980-1981 Dodge Ramcharger, front left. 10 inch rear drums; locking hubs; includes rotor only, not hubs.
• Fits 1980-1981 Dodge Ramcharger, front left. 11 inch rear drums; locking hubs; includes rotor only, not hubs.
• Fits 1980-1981 Dodge W150, front left. 10 inch rear drums; locking hubs; rotor only.
• Fits 1980-1981 Dodge W150, front left. 11 inch rear drums; disc only.

Installation Notes and Tips

• Confirm the front left position before ordering.
• Verify rotor dimensions, bolt pattern, and center hole diameter against the existing brake setup.
• Check whether the vehicle uses rotor-only service or a hub-specific assembly, as noted in the fitment data.
• Inspect pads, caliper condition, and wheel bearing surfaces during brake service.
• Follow the vehicle manufacturer’s torque and bedding procedures after installation.

Quality Assurance

This rotor is manufactured with a rust resistant coating and zinc silver hat finish to support corrosion resistance in brake service. The part number 631-40057L is cataloged for the confirmed Dodge Ramcharger, Dodge W150, and Dodge W100 front left applications listed above.