Dynamite Friction 631-47018L Disc Brake Rotor - Front Left

Drilled and Slotted Front Left Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver, part number 631-47018L, is a vented front left disc brake rotor built for specific GM compact and midsize applications. It features a slotted X drilled surface, zinc silver hat finish, and a rust resistant coating for a clean, service-ready appearance.

Compatible With 1985-1991 Chevrolet Cavalier, front left; 1987-1991 Chevrolet Corsica, front left; and other listed front-left applications including Pontiac Sunbird, Buick Skylark, Oldsmobile Cutlass Calais, and Pontiac Grand Am. The 631-47018L rotor is sized with a 246 mm outside diameter, 58.4 mm center hole diameter, 5-lug pattern, and 100 mm bolt circle.

Key Features

• Part number 631-47018L from Dynamite Friction
• Disc brake rotor for front left position
• Slotted X drilled brake surface with directional pattern
• Vented rotor construction
• Zinc silver hat finish with rust resistant coating
• 5 bolt holes and 5 stud/lug holes
• Outside diameter: 246 mm
• Nominal thickness: 22.35 mm
• Discard thickness: 20.7 mm
• Bolt circle diameter: 100 mm

Product Details

The DFC Brake Rotor - Drilled and Slotted - Silver line focuses on rotor service parts with a finished appearance and application-specific sizing. This rotor uses a plain disc finish with a zinc silver hat and a rust resistant coating, while the slotted X drilled surface and directional brake face are specified for the front left side. For buyers searching for a 1985-1991 Chevrolet Cavalier front left brake rotor or a 1987-1991 Chevrolet Corsica front left rotor, 631-47018L matches the listed fitment and dimensions.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Repair Uses

• Replacing a worn front left brake rotor
• Correcting rotor scoring or uneven braking feel
• Restoring proper brake surface thickness
• Addressing rusted or pitted rotor surfaces
• Servicing 5-lug GM front brake systems on listed vehicles

Installation Notes

Verify rotor diameter, center hole diameter, bolt circle, and thickness before installation. This rotor is listed for the front left position only, so confirm side and vehicle application before ordering. Inspect pads, caliper condition, and hub surface during brake service to ensure the new rotor seats correctly.

Quality Assurance

Dynamite Friction supplies this rotor with a rust resistant coating and zinc silver hat finish for improved corrosion resistance in service. The part is built to the published dimensions and fitment listed for the specified Chevrolet, Pontiac, Buick, Cadillac, and Oldsmobile applications.