Dynamite Friction 4502-31282 Disc Brake Kit - Rear

Rear Brake Kit for BMW and Rolls-Royce

The DFC GEOSPEC Rotors with 5000 Advanced Brake Pads kit is a rear disc brake service kit built for select BMW and Rolls-Royce applications. Part number 4502-31282 combines coated rotors and matched friction material for OE-style service on high-end rear brake systems.

Fits 2017-2023 BMW M760i xDrive, rear; Fits 2019-2022 BMW M850i xDrive, rear; Fits 2020-2022 BMW X7, rear; Fits 2021-2023 BMW Alpina XB7 and Alpina B8 Gran Coupe, rear; Fits 2019-2020 Rolls-Royce Cullinan, rear.

Key Features

• DFC GEOSPEC coated brake rotors with a silver-gray corrosion-resistant finish
• Dry-processed, dry-shipped rotors ready for installation without extra cleaning
• G3000/G11H18 cast iron rotor construction for OE-spec durability and stability
• Non-directional rotor finish for more even pad bed-in and smoother braking
• 100% inspected rotors, including balance checks on vented rotors
• DFC 5000 Advanced Brake Pads with post-cured friction material
• Scorched pads to reduce initial break-in time and improve first-stop response
• Premium rubber-steel-rubber shims for improved noise, vibration, and harshness control

Product Details

DFC Brake Kit 4502-31282 is engineered as a complete rear brake solution for vehicles that require precise fitment and consistent pedal feel. The GEOSPEC rotor coating helps resist rust better than conventional paint or zinc finishes, while the machined surface and non-directional finish support quieter operation and more uniform pad contact. The 5000 Advanced pads are formulated for stable friction performance and are assembled with NVH-focused shims for refined braking behavior. This part number 4502-31282 is a practical choice for BMW M760i xDrive, BMW M850i xDrive, BMW X7, Alpina XB7, Alpina B8 Gran Coupe, and Rolls-Royce Cullinan rear brake service.

What It Helps Address

• Rear brake noise during stops
• Rotor rust and surface corrosion
• Uneven pad bedding after brake service
• Brake vibration from worn or out-of-spec rotors
• Reduced stopping consistency from aged pads

Installation Notes and Tips

Confirm rear axle fitment against the vehicle’s brake configuration before ordering, especially on models listed with optional full cast or original design aluminum hat rotor notes. Clean installation surfaces, follow proper torque procedures, and bed the pads according to standard brake service practice. For 2020-2022 BMW X7 and 2017-2020 BMW M760i xDrive applications, note the fitment rows that reference a disc brake pad wear sensor.

Quality Assurance

Each rotor is machined to tight tolerances, checked against critical OE-spec dimensions, and inspected for balance where applicable. DFC states that every rotor includes a 12-month warranty against defects in material and workmanship.