Dynamite Friction 4004-31045 Disc Brake Rotor Set - Front and Rear

DFC Geospec Rotors for BMW Front and Rear Brakes

Dynamite Friction DFC Geospec Rotors part number 4004-31045 are a disc brake rotor set for select BMW models with front and rear fitment. This application covers multiple 3 Series and 4 Series configurations, including standard, optional full cast, and aluminum hat rotor designs.

Key Features

• Disc brake rotor set for front and rear axle positions
• Compatible with select BMW 230i, M240i, 430i, 328d xDrive, 330i xDrive, 328i, 428i, 428i Gran Coupe, and 428i xDrive applications
• Supports OE-style replacement needs across standard rotor and dimpled slotted rotor configurations
• DFC Geospec Rotors line for application-specific brake service
• Part number 4004-31045 for easy identification

Detailed Description

The Dynamite Friction DFC Geospec Rotors 4004-31045 are built for BMW brake service where front and rear rotor replacement is required. Fitment includes 2013-2021 BMW 3 Series and 4 Series models such as the 328i, 328i xDrive, 328d xDrive, 330i xDrive, 428i, 428i Gran Coupe, 428i xDrive, 430i, 430i xDrive, 230i, 230i xDrive, M240i, and M240i xDrive. This rotor set is listed for both original design aluminum hat rotors and optional full cast rotor applications, depending on the vehicle configuration.

DFC Geospec Rotors are positioned as an application-focused product line within Dynamite Friction’s brake catalog, giving buyers a direct replacement option for BMW front and rear disc brake service. If you are searching for BMW 430i front and rear brake rotors, BMW 328i xDrive rotor replacement, or a 2021 BMW M240i xDrive disc brake rotor set, part number 4004-31045 is the matching reference.

Common Problems This Part Can Address

• Worn rotor surfaces that affect braking consistency
• Brake pulsation caused by rotor wear or thickness variation
• Noise from rotors that are past service limits
• Reduced braking performance during routine brake repair
• Rotor replacement needs on BMW front and rear brake service

Installation Notes and Tips

Verify rotor style and brake package before ordering, since fitment varies by BMW configuration and rotor design. Confirm the vehicle year, model, and whether the application uses standard rotors, optional full cast rotors, or aluminum hat rotors. Professional brake installation is recommended, and the braking system should be inspected for pad wear, caliper condition, and hub surface cleanliness during service.

Quality Assurance

DFC Geospec Rotors are offered as a dedicated brake rotor line from Dynamite Friction for application-specific replacement use. Part number 4004-31045 is cataloged against confirmed BMW fitment data for 2013-2021 vehicles.

• Fits 2021 BMW 230i, front and rear; Optional Design Full Cast Rotors (Standard Rotors); DFC Geospec Rotors
• Fits 2021 BMW 230i xDrive, front and rear; Original Design Aluminum Hat Rotors (Standard Rotors); DFC Geospec Rotors
• Fits 2021 BMW M240i, front and rear; Optional Design Full Cast Rotors; DFC Geospec Rotors
• Fits 2021 BMW M240i xDrive, front and rear; Original Design Aluminum Hat Rotors; DFC Geospec Rotors
• Fits 2017-2020 BMW 430i, front and rear; Optional Design Full Cast Rotors (Dimpled Slotted Rotors); DFC Geospec Rotors
• Fits 2017-2020 BMW 430i xDrive, front and rear; Original Design Aluminum Hat Rotors (Standard Rotors); DFC Geospec Rotors
• Fits 2014-2018 BMW 328d xDrive, front and rear; Optional Design Full Cast Rotors; DFC Geospec Rotors
• Fits 2017-2018 BMW 330i xDrive, front and rear; Original Design Aluminum Hat Rotors (Dimpled Slotted Rotors); DFC Geospec Rotors
• Fits 2016 BMW 328i, front and rear; Optional Design Full Cast Rotors (Standard Rotors); DFC Geospec Rotors
• Fits 2014-2016 BMW 428i, front and rear; Original Design Aluminum Hat Rotors (Dimpled Slotted Rotors); DFC Geospec Rotors
• Fits 2015-2016 BMW 428i Gran Coupe, front and rear; Optional Design Full Cast Rotors (Dimpled Slotted Rotors); DFC Geospec Rotors
• Fits 2014-2016 BMW 428i xDrive, front and rear; Optional Design Full Cast Rotors (Dimpled Slotted Rotors); DFC Geospec Rotors
• Fits 2015 BMW 328i, front and rear; Optional Design Full Cast Rotors (Dimpled Slotted Rotors); DFC Geospec Rotors
• Fits 2013-2014 BMW 328i xDrive, front and rear; Optional Design Full Cast Rotors; DFC Geospec Rotors