Dynamite Friction 4004-31040 Disc Brake Rotor Set - Front and Rear

DFC Geospec Rotors for BMW 640i

Dynamite Friction DFC Geospec Rotors part number 4004-31040 are a disc brake rotor set for select BMW 640i applications. This set is listed for front and rear positions and is matched to OE-style rotor configurations noted in the fitment data.

Key Features

• Disc brake rotor set for front and rear service
• DFC Geospec Rotors line from Dynamite Friction
• Fits original design aluminum hat rotor applications
• Fits optional design full cast rotor applications on select xDrive models
• Direct fit coverage for BMW 640i and BMW 640i Gran Coupe applications
• Part number 4004-31040 for catalog lookup and ordering

Fitment Details

• Fits 2013-2019 BMW 640i Gran Coupe, front and rear, original design aluminum hat rotors; DFC Geospec Rotors.
• Fits 2014-2019 BMW 640i xDrive Gran Coupe, front and rear, original design aluminum hat rotors; DFC Geospec Rotors.
• Fits 2012-2018 BMW 640i, front and rear, original design aluminum hat rotors; DFC Geospec Rotors.
• Fits 2014-2018 BMW 640i xDrive, front and rear, optional design full cast rotors; DFC Geospec Rotors.

What This Rotor Set Helps Address

• Brake pulsation from worn or uneven rotor surfaces
• Rotor scoring, grooves, or heat-related wear
• Reduced braking consistency during daily driving
• Service replacement needs for front and rear brake rotor maintenance

Installation Notes and Tips

Confirm the vehicle’s rotor design before ordering, especially on BMW 640i xDrive models where fitment notes distinguish original design aluminum hat rotors from optional design full cast rotors. Verify axle position and compare the existing rotor style to the catalog listing before installation. Professional brake service procedures should be followed, including inspection of pads, calipers, and hub surfaces.

Quality Assurance

DFC Geospec Rotors are cataloged as a dedicated brake rotor line from Dynamite Friction for application-specific fitment. Part number 4004-31040 is listed for confirmed BMW 640i, BMW 640i Gran Coupe, and BMW 640i xDrive coverage in the years shown.