Dynamic Friction 4514-31168 Disc Brake Kit - Front and Rear

Complete brake kit for BMW applications

This Dynamic Friction disc brake kit combines GeoSpec coated rotors, 5000 Advanced brake pads, and hardware for a complete brake service package. It is built for BMW applications that require OE-style fitment and consistent braking performance across the full system.

Part number 4514-31168 is listed for BMW 840i, 840i Gran Coupe, 840i xDrive, 840i xDrive Gran Coupe, M850i xDrive, M850i xDrive Gran Coupe, and X5 applications with front and rear coverage.

• GeoSpec rotors use a coated finish that resists rust and arrives dry for installation.
• 5000 Advanced brake pads are post-cured and scorched to support stable friction from the first stop.
• Premium rubber-steel-rubber shims help reduce noise, vibration, and harshness.
• Rotor machining uses a non-directional finish for smoother pad bed-in and quieter braking.
• Hardware is included in the kit for a more complete brake service.

Detailed product overview

Dynamic Friction 4514-31168 is a brake service kit built around coated GeoSpec rotors and 5000 Advanced pads. The rotors are made to OEM-style specifications using G3000/G11H18 cast iron, then machined to tight tolerances and finished to promote even pad contact. The coating is designed to provide a durable silver-gray appearance while helping protect against corrosion. The pads are formulated for stable friction and improved NVH control through premium shims. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common brake issues this kit addresses

• Brake noise from worn hardware or pad movement
• Rust buildup on exposed rotor surfaces
• Uneven pad bed-in after rotor replacement
• Reduced braking consistency from fatigued friction components
• Corrosion-related service delays during brake repair

Installation notes and tips

Compatible with 2020-2023 BMW 840i, front and rear; 2020-2023 BMW 840i Gran Coupe, front and rear; 2020-2023 BMW 840i xDrive, front and rear; 2020-2023 BMW 840i xDrive Gran Coupe, front and rear; 2019-2022 BMW M850i xDrive, front and rear; 2020-2022 BMW M850i xDrive Gran Coupe, front and rear; and 2021-2022 BMW X5, front and rear. Verify the brake configuration on the vehicle before installation, especially where optional or original rotor designs are noted. The dry rotor finish is ready for installation without additional preparation.

Quality assurance

DFC states that the rotors are inspected for critical dimensions and balance, with 100% inspection after machining. The rotors are covered by a 12-month warranty against defects in material and workmanship.