Dynamite Friction 4512-31258 Disc Brake Kit - Rear

Rear Brake Kit for BMW 430i, 330i, and 328i

The DFC GEOSPEC Coated Rotors with 5000 Advanced Brake Pads - Ceramic and Hardware kit is a rear disc brake service kit built for select BMW applications. Part number 4512-31258 combines coated rotors, ceramic pads, and matching brake hardware for a complete rear brake refresh on covered BMW 3 Series and 4 Series models.

• Rear disc brake kit for select BMW 430i, 430i Gran Coupe, 430i xDrive, and 430i xDrive Gran Coupe models
• Also fits rear brake service applications for BMW 330i, 330i xDrive, 328i, 328i xDrive, 328d xDrive, 428i, and related xDrive/Gran Coupe variants
• GEOSPEC coated rotors feature a silver-gray corrosion-resistant finish
• Rotors are processed dry and ready to install
• Non-directional rotor finish supports even pad bed-in and smoother braking
• 5000 Advanced ceramic pads are post-cured and scorched for stable friction performance
• Premium rubber-steel-rubber shims help reduce noise, vibration, and harshness
• Hardware kit uses PTFE coating, vulcanized rubber, and stainless steel construction

Product Line Details

DFC GEOSPEC coated rotors are machined to tight tolerances and built to OEM-style G3000/G11H18 cast iron specifications. The coating is designed to resist rust better than conventional paint or zinc finishes, while the dry, ready-to-install surface saves prep time during brake service. The 5000 Advanced pad line is formulated for consistent friction across a range of vehicle types, and the included hardware is engineered to restore proper caliper movement and spring tension.

What This Brake Kit Helps Address

• Rear brake noise from worn pads or fatigued hardware
• Rust buildup on exposed rotor surfaces
• Uneven braking feel from worn rotor finish or pad glazing
• Excessive caliper movement caused by aged hardware
• Premature or uneven rear pad wear

Installation Notes and Fitment

Fits 2017-2020 BMW 430i, rear. Fits 2017-2020 BMW 430i Gran Coupe, rear. Fits 2017-2020 BMW 430i xDrive, rear. Fits 2017-2020 BMW 430i xDrive Gran Coupe, rear. Fits 2017-2019 BMW 330i GT xDrive, rear. Fits 2017-2019 BMW 330i xDrive, rear. Fits 2013-2018 BMW 320i xDrive, rear. Fits 2014-2018 BMW 328d xDrive, rear. Fits 2017-2018 BMW 330i, rear. Fits 2016 BMW 328i, rear. Fits 2014-2016 BMW 328i GT xDrive, rear. Fits 2014-2016 BMW 428i, rear. Fits 2015-2016 BMW 428i Gran Coupe, rear. Fits 2014-2016 BMW 428i xDrive, rear. Fits 2015-2016 BMW 428i xDrive Gran Coupe, rear. Fits 2015 BMW 328i, rear with standard brakes and 194mm rear disc hat diameter from 07/14 production. Fits 2013 BMW 328i xDrive, rear with standard brakes.

Before installation, confirm rear brake configuration and production notes against the vehicle. Clean hub surfaces thoroughly, inspect caliper slides, and follow proper bedding procedures after installation for consistent pad transfer.

Quality Assurance

Each rotor is inspected for critical dimensions and balance, with vented rotors electronically mill-balanced when required. The kit is backed by a 12-month warranty against defects in material and workmanship. Part number 4512-31258 is built for OE-style fit, finish, and braking consistency on covered BMW rear brake applications.