Dynamite Friction 4512-31251 Disc Brake Kit - Rear

Rear Brake Kit for BMW 220i, 228i, 320i, 328i and 428i

DFC GEOSPEC Coated Rotors with 5000 Advanced Brake Pads - Ceramic and Hardware, part number 4512-31251, is a rear disc brake kit built for select BMW applications from 2012-2021. It combines coated rotors, ceramic brake pads, and brake hardware in one service kit for a direct brake refresh on compatible rear axle applications.

Fits 2017-2021 BMW 230i, rear; Fits 2017-2021 BMW 230i xDrive, rear; Fits 2018 BMW 220i, rear; Fits 2015-2016 BMW 220i, rear; Fits 2018 BMW 220i, rear; Fits 2015-2016 BMW 220i, rear; Fits 2013-2018 BMW 320i, rear; Fits 2017 BMW 220i, rear; Fits 2014-2016 BMW 228i, rear; Fits 2015-2016 BMW 228i xDrive, rear; Fits 2014-2016 BMW 428i, rear; Fits 2015 BMW 328i, rear; Fits 2014 BMW 328i, rear; Fits 2013 BMW 328i, rear; Fits 2012 BMW 328i, rear.

• Rear disc brake kit with rotors, pads, and hardware components
• DFC GEOSPEC coated rotors with a silver-gray corrosion-resistant finish
• Dry-to-install rotor coating reduces prep time during brake service
• 5000 Advanced ceramic pads are post-cured and scorched for stable friction performance
• Premium rubber-steel-rubber shims help reduce noise, vibration, and harshness
• Non-directional rotor finish supports even pad bed-in and smoother braking
• OE-style rotor machining and inspection for dimensional consistency

Product Details

The DFC 4512-31251 brake kit is engineered for rear brake service on BMW 220i, 228i, 320i, 328i, 428i, and 230i models listed in the fitment data. DFC GEOSPEC rotors are cast to G3000/G11H18 specifications, machined to tight tolerances, and finished to help resist rust while maintaining OE-style durability and stability. The 5000 Advanced ceramic pads are formulated for consistent friction and are assembled with shims that support quieter operation. This kit is a practical choice for drivers searching for a rear brake kit for 2014 BMW 328i rear brakes, a 2015-2016 BMW 228i xDrive rear brake replacement, or a 2017-2021 BMW 230i rear disc brake service.

What This Brake Kit Helps Address

• Rear brake noise, squeal, or vibration
• Rust on exposed rotor surfaces
• Uneven or worn brake pad contact
• Reduced braking smoothness during stop-and-go driving
• Brake service needs on BMW rear axle applications

Installation Notes

Each rotor is processed dry and ready to install, which helps reduce prep work during service. For best results, clean the hub mounting surface before installation and follow the vehicle manufacturer’s brake bedding procedure after replacement. Verify rear axle fitment by model year and brake configuration before ordering, especially on BMW 220i and 328i applications with listed production or market notes.

Quality Assurance

DFC states that each rotor is inspected for critical dimensions and balance, with vented rotors electronically mill-balanced when required. The rotors include a 12-month warranty against defects in material and workmanship. Part number 4512-31251 is built as a complete rear brake service solution for select BMW applications.