Dynamic Friction 4514-31155 Disc Brake Kit - Front and Rear

Brake Kit for BMW 540i, 840i xDrive, and X7

DFC Geospec Rotors with 5000 Advanced Brake Pads includes Hardware is a complete disc brake kit for select 2020-2021 BMW applications. Part number 4514-31155 combines coated rotors, advanced brake pads, and matching hardware for a service-focused brake repair on the front and rear axles.

Key Features

• Complete disc brake kit with rotors, pads, and hardware
• DFC 5000 Advanced pads are post-cured and scorched for consistent friction performance
• Premium rubber-steel-rubber shims help reduce noise, vibration, and harshness
• GeoSpec coated rotors use a silver-gray protective finish to resist rust
• Rotors are shipped dry and ready to install without oil removal
• Non-directional rotor finish supports even pad bed-in and smoother braking
• G3000/G11H18 cast iron rotor specification for OE-style durability and stability
• Part number 4514-31155 for front and rear brake service

Product Details

DFC Friction designed this kit for drivers who need a direct brake service solution for BMW 540i, BMW 540i xDrive, BMW 840i xDrive, BMW 840i xDrive Gran Coupe, and BMW X7 applications listed below. The DFC Geospec rotor coating helps protect against corrosion while the machined surface and balance inspection support quiet, stable operation. The 5000 Advanced pads are formulated for controlled friction and consistent pedal response, while the included hardware addresses wear in the brake mounting components that can contribute to noise and uneven pad movement. Part number 4514-31155 is built around OE-style fitment and service requirements for these BMW platforms.

What This Brake Kit Helps Address

• Brake noise from worn pads or fatigued hardware
• Rotor rust and surface corrosion on exposed brake components
• Uneven braking feel caused by worn friction material
• Excessive caliper movement related to aged hardware
• Longer service time from rotors that require cleaning before installation

Installation Notes and Tips

Compatible With 2020-2021 BMW 540i, front and rear. Compatible With 2020-2021 BMW 540i xDrive, front and rear. Compatible With 2020-2021 BMW 840i xDrive, front and rear. Compatible With 2020-2021 BMW 840i xDrive Gran Coupe, front and rear. Compatible With 2020 BMW X7, front and rear. Verify rotor design and brake package details before installation, especially on BMW models with optional or original-design rotor configurations. Clean all mating surfaces, follow proper torque procedures, and complete a full brake bed-in after installation. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

DFC rotors are 100% inspected for critical dimensions and balance, and each rotor is backed by a 12-month warranty against defects in material and workmanship. The pads are post-cured, scorched, and assembled with premium shims to support consistent performance and NVH control.