Dynamite Friction 4502-31291 Disc Brake Kit - Front

Front Brake Kit for BMW and Rolls-Royce

The Dynamite Friction DFC Geospec Rotors with 5000 Advanced Brake Pads kit combines coated front rotors and matched brake pads for service on select BMW and Rolls-Royce applications. Part number 4502-31291 is built for front axle replacement on vehicles such as the BMW 840i, BMW M850i xDrive, BMW X5, BMW X6, BMW X7, BMW M760i xDrive, and Rolls-Royce Cullinan.

Key Features

• Complete front disc brake kit with rotors and pads
• DFC GeoSpec coated rotors with a silver-gray corrosion-resistant finish
• Rotors shipped dry and ready to install
• Non-directional rotor finish for even pad bed-in and quieter operation
• 5000 Advanced pads are post-cured and scorched for stable friction performance
• Premium rubber-steel-rubber shims help reduce noise, vibration, and harshness
• OE-style G3000/G11H18 cast iron rotor construction

Product Details

DFC Geospec Rotors with 5000 Advanced Brake Pads are engineered as a matched front brake service kit for vehicles that require precise braking response and consistent pedal feel. The rotors are machined to tight tolerances, finished with a non-directional surface, and inspected for balance and critical dimensions. The pads are formulated for stable friction, then post-cured and scorched to reduce initial break-in time and improve stopping response from the first stop. Part number 4502-31291 is a practical choice for BMW 840i front brake service, BMW X5 front brake replacement, and Rolls-Royce Cullinan front brake maintenance where OE-style fit and finish matter.

Common Problems This Kit Can Address

• Front brake pulsation from worn or uneven rotors
• Brake noise caused by aged pads or poor pad-to-rotor contact
• Reduced stopping performance from heat-worn friction material
• Rust buildup on exposed rotor surfaces
• Longer service time caused by uncoated rotors that require extra prep

Installation Notes and Tips

Fits 2020-2023 BMW 840i, front; 2020-2023 BMW 840i Gran Coupe, front; 2020-2023 BMW 840i xDrive, front; 2020-2023 BMW 840i xDrive Gran Coupe, front; 2019-2022 BMW M850i xDrive, front; 2020-2022 BMW M850i xDrive Gran Coupe, front; 2019-2022 BMW X5, front; 2021-2022 BMW X5, front; 2020 BMW X5, front; 2020 BMW X6, front; 2019 BMW X5, front; 2019 BMW X7, front; 2020 BMW X7, front; 2017-2019 BMW M760i xDrive, front; 2019-2022 Rolls-Royce Cullinan, front.

Confirm rotor design and axle configuration before ordering, since some applications list original design aluminum hat rotors while others use optional design full cast rotors. The coated rotor surface is ready for installation without additional cleaning, and the pad surface is prepared to reduce the need for extended bedding procedures.

Quality Assurance

Each DFC GeoSpec rotor is 100% inspected after machining, including balance checks on vented rotors and verification of critical dimensions against OE specifications. The rotors carry a 12-month warranty against defects in material and workmanship. DFC also uses post-cured pads and premium shims to support consistent friction and quieter operation across the service interval.