Dynamic Friction 631-31142L Disc Brake Rotor - Front Left

BMW X5 and X6 Front Left Brake Rotor

The Dynamic Friction DFC Brake Rotor - Drilled and Slotted - Silver, part number 631-31142L, is a vented front left disc brake rotor for select BMW X5 and BMW X6 applications. It combines a slotted X drilled surface with a zinc silver hat finish and rust resistant coating for a clean, service-ready appearance.

Key Features

• Part number 631-31142L for front left brake rotor replacement
• Fits select BMW X5 and BMW X6 front left positions
• Vented rotor design with 348 mm outside diameter
• Slotted X drilled braking surface for consistent pad contact
• Zinc silver hat finish with rust resistant coating
• Directional brake surface for the specified application
• 5-lug pattern with 120 mm bolt circle diameter

Product Details

This Dynamic Friction rotor is built around the listed dimensions, including a 30 mm nominal thickness, 28.4 mm discard thickness, 62.2 mm overall height, and 75 mm center hole diameter. The plain disc finish and silver hat finish support a clean OE-style appearance while the drilled and slotted surface adds a performance-oriented braking profile. Use 631-31142L when replacing the front left rotor on BMW X5 and BMW X6 models that match the fitment data.

The DFC Brake Rotor - Drilled and Slotted - Silver line focuses on application-specific rotors with corrosion protection and a directional braking surface. For BMW X5 front left brake rotor replacement or BMW X6 front left brake rotor replacement, this part number 631-31142L matches the listed vehicle configurations and dimensions.

What This Rotor Helps Address

• Brake pulsation from a worn or uneven rotor surface
• Reduced braking consistency caused by rotor wear
• Corrosion on exposed rotor and hat surfaces
• Noise or vibration related to rotor condition
• Fitment issues when replacing the front left rotor on listed BMW applications

Installation Notes and Tips

Install only on the listed front left BMW X5 and BMW X6 applications. Confirm rotor diameter, center hole diameter, bolt circle diameter, and thickness before installation. Because this rotor uses a directional braking surface, verify correct side orientation during service. Inspect pads, caliper condition, and hub surface before completing the brake job.

Quality Assurance

Dynamic Friction identifies this rotor with rust resistant coating and a zinc silver hat finish for added surface protection. Part number 631-31142L is specified for the listed BMW X5 and BMW X6 front left applications and should be matched to the vehicle’s production date and fitment notes where shown.