Dynamite Friction 633-31028L Disc Brake Rotor - Rear Left

Rear Left Drilled and Slotted Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black, part number 633-31028L, is a rear left disc brake rotor built for BMW applications that call for a 280 mm solid rotor with a directional slotted and drilled surface. It combines a plain braking face with a zinc black hat finish and rust resistant coating for a clean, service-ready appearance.

For BMW 318i, 318is, 325i, 325is, 323i, 323is, 328i, and 328is rear brake service, 633-31028L provides the correct fitment details and rotor dimensions for the listed applications.

Key Features

• Part number 633-31028L
• Rear left disc brake rotor
• 280 mm outside diameter
• Solid rotor design
• Slotted X drilled surface type
• Directional brake surface
• Plain disc finish with zinc black hat finish
• Rust resistant coating
• 5-bolt, 5-lug pattern with 120 mm bolt circle diameter
• Center hole diameter: 75 mm
• Nominal thickness: 10 mm
• Discard thickness: 8.4 mm

Product Details

The DFC Brake Rotor - Drilled and Slotted - Black line focuses on rotor construction and finish details that matter during brake service. This rotor uses a slotted and drilled braking surface to match the specified directional design, while the black zinc hat finish and rust resistant coating help maintain a cleaner appearance on the hub area. The 60.1 mm overall height and 15 mm bolt hole diameter align with the listed BMW rear left fitments.

Fits 1998-1999 BMW 323i, rear left. Fits 1998-1999 BMW 323is, rear left. Fits 1996-1999 BMW 328i, rear left. Fits 1996-1999 BMW 328is, rear left. Fits 1992-1998 BMW 318i, rear left. Fits 1992-1998 BMW 318is, rear left. Fits 1992-1995 BMW 325i, rear left. Fits 1992-1995 BMW 325is, rear left. Fits 1991 BMW 318i, rear left, vehicle production date from 11/91. Fits 1991 BMW 318is, rear left, vehicle production date from 11/91.

What This Rotor Helps Address

• Rear brake rotor replacement for worn BMW rear left rotors
• Brake pulsation caused by rotor wear or thickness loss
• Surface scoring on the braking face
• Corrosion on the hat and rotor mounting area
• Service needs on BMW rear brake systems with the listed 5-lug pattern

Installation Notes and Tips

Verify rear left position, rotor diameter, center bore, bolt circle, and thickness before installation. Confirm the vehicle production date for 1991 BMW 318i and 318is models, since fitment applies only from 11/91. Inspect pads, caliper condition, and hub surface during brake service to ensure proper rotor seating and even wear.

Quality Assurance

Dynamite Friction supplies this rotor with the specified dimensions, directional surface design, and rust resistant coating for the listed BMW applications. Part number 633-31028L is built to match the fitment and construction details shown for the rear left position.