Dynamite Friction 4512-31247 Disc Brake Kit - Rear

Rear Brake Kit for BMW 3 Series and 4 Series

DFC Friction part number 4512-31247 is a rear disc brake kit built for select BMW applications from 2012-2020. It combines GEOSPEC coated rotors, 5000 Advanced ceramic brake pads, and brake hardware in one service package for a cleaner, more complete brake repair.

Compatible With BMW 330i, 340i, 430i, 440i, and related xDrive and Gran Coupe rear brake applications, this kit is designed for OE-style fitment and consistent stopping performance.

Key Features

• DFC GEOSPEC coated rear rotors with a silver-gray corrosion-resistant finish
• Dry-processed rotors arrive ready to install, with no oil coating to remove
• G3000/G11H18 cast iron rotor construction for OE-style durability and stability
• Non-directional rotor finish supports faster pad bed-in and smoother braking
• 5000 Advanced ceramic pads are post-cured and scorched for stable friction
• Premium rubber-steel-rubber shims help reduce noise, vibration, and harshness
• Hardware kit uses PTFE coating, vulcanized rubber, and stainless steel

Product Details

The DFC GEOSPEC Coated Rotors with 5000 Advanced Brake Pads - Ceramic and Hardware line is built for drivers who want a complete rear brake service with matched components. The coated rotors are machined to tight tolerances, inspected for critical dimensions, and balanced where required to support quiet, even braking. The ceramic pad formulation is developed for modern vehicle braking demands and is assembled with NVH-focused shims for improved refinement. Part number 4512-31247 is a practical choice for BMW rear brake maintenance when corrosion protection and OE-style fit are priorities.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Brake Issues It Can Address

• Rear brake pulsation from worn or uneven rotors
• Brake noise caused by fatigued or corroded hardware
• Reduced stopping consistency from worn pads
• Rust buildup on exposed rotor surfaces
• Uneven pad wear from aged caliper hardware

Installation Notes and Tips

• Fits 2012-2020 BMW 335i, rear; 2013-2015 BMW 335i xDrive, rear; 2014-2016 BMW 335i GT xDrive, rear; 2016-2018 BMW 340i, rear; 2016-2017 BMW 340i xDrive, rear; 2017-2019 BMW 340i GT xDrive, rear; 2017-2020 BMW 430i, rear; 2017-2020 BMW 430i xDrive, rear; 2017-2020 BMW 430i Gran Coupe, rear; 2017-2020 BMW 430i xDrive Gran Coupe, rear; 2017-2020 BMW 440i, rear; 2017-2020 BMW 440i xDrive, rear; 2017-2020 BMW 440i Gran Coupe, rear; and 2017-2020 BMW 440i xDrive Gran Coupe, rear, with the listed package and rotor configuration notes.
• Confirm rotor design and brake package details before ordering, especially on M Sport and standard brake applications.
• Clean hub surfaces thoroughly and verify caliper hardware condition during service.
• Follow proper pad bedding procedures after installation for consistent results.

Quality Assurance

Each DFC GEOSPEC rotor is manufactured to OE specifications, inspected for critical attributes, and backed by a 12-month warranty against defects in material and workmanship. The kit is engineered for BMW rear brake service with attention to fit, finish, and braking consistency.