Dynamite Friction 4512-31310 Disc Brake Kit - Rear

Rear Brake Kit for BMW Performance Applications

Dynamite Friction DFC Geospec Rotors with 5000 Advanced Brake Pads, part number 4512-31310, is a rear disc brake kit built for select BMW applications. It combines replacement rotors and brake pads in one service kit for drivers maintaining rear brake performance on compatible BMW models.

Key Features

• Rear disc brake kit from Dynamite Friction
• DFC Geospec rotors paired with 5000 Advanced Brake Pads
• Application-specific fitment for select BMW rear brake service
• Part number 4512-31310 for ordering and catalog lookup
• Compatible with BMW 840i, BMW M850i xDrive, and BMW X5 rear applications listed below

Fitment Details

• Fits 2020-2023 BMW 840i, rear. Original Design Aluminum Hat Rotors; DFC Geospec Rotors with 5000 Advanced Brake Pads includes Hardware.
• Fits 2020-2023 BMW 840i Gran Coupe, rear. Optional Design Full Cast Rotors; DFC Geospec Rotors with 5000 Advanced Brake Pads includes Hardware.
• Fits 2020-2023 BMW 840i xDrive, rear. Optional Design Full Cast Rotors; DFC Geospec Rotors with 5000 Advanced Brake Pads includes Hardware.
• Fits 2020-2023 BMW 840i xDrive Gran Coupe, rear. Optional Design Full Cast Rotors; DFC Geospec Rotors with 5000 Advanced Brake Pads includes Hardware.
• Fits 2019-2022 BMW M850i xDrive, rear. Original Design Aluminum Hat Rotors; DFC Geospec Rotors with 5000 Advanced Brake Pads includes Hardware.
• Fits 2020-2022 BMW M850i xDrive Gran Coupe, rear. Optional Design Full Cast Rotors; DFC Geospec Rotors with 5000 Advanced Brake Pads includes Hardware.
• Fits 2021-2022 BMW X5, rear. Original Design Aluminum Hat Rotors; DFC Geospec Rotors with 5000 Advanced Brake Pads includes Hardware.

Product Description

DFC Geospec Rotors with 5000 Advanced Brake Pads is a rear brake service kit for BMW vehicles that require a matched rotor-and-pad replacement. The kit is listed for rear service on the BMW 840i, BMW M850i xDrive, and BMW X5 applications shown above, with coverage for both original design aluminum hat rotors and optional design full cast rotors where noted. Use part number 4512-31310 to verify the correct rear brake kit for your vehicle configuration.

Common Reasons to Replace

• Rear brake vibration or pulsation during braking
• Brake noise from worn pads or rotor surface wear
• Reduced braking consistency from aged rear components
• Rotor scoring, corrosion, or uneven wear
• Service interval replacement on BMW rear brake systems

Installation Notes

Confirm rotor design and rear brake configuration before ordering, especially on BMW 840i and M850i xDrive models with different rotor constructions. Match the vehicle year, model, and rear application exactly to the fitment list, and inspect caliper hardware, pad wear sensors, and mounting surfaces during service. Part number 4512-31310 should be checked against the vehicle’s rear brake setup before installation.

Quality Assurance

Dynamite Friction identifies this kit as a DFC Geospec rotor and 5000 Advanced Brake Pad service package for the listed BMW rear applications. Verify fitment by year, model, and rear brake design before installation.