Dynamite Friction 4004-31044 Disc Brake Rotor Set - Front and Rear

DFC Geospec Rotors for BMW Brake Service

The Dynamite Friction DFC Geospec Rotors, part number 4004-31044, are a disc brake rotor set for front and rear axle applications on select BMW models. This rotor set is built for vehicles that use either original design aluminum hat rotors or optional design full cast rotors, depending on the exact fitment listed below.

Key Features

• Disc brake rotor set for front and rear positions
• DFC Geospec Rotors product line from Dynamite Friction
• Application-specific fitment for select BMW 1 Series, 2 Series, 3 Series, and 4 Series models
• Coverage includes standard rotor, full cast rotor, dimpled slotted rotor, and aluminum hat rotor configurations where listed
• Part number 4004-31044 for ordering and catalog matching

Compatible BMW Applications

• Fits 2017-2020 BMW 230i, front and rear, optional design full cast rotors (dimpled slotted rotors).
• Fits 2017-2020 BMW 230i xDrive, front and rear, optional design full cast rotors (standard rotors).
• Fits 2017-2020 BMW M240i, front and rear, optional design full cast rotors.
• Fits 2017-2020 BMW M240i xDrive, front and rear, original design aluminum hat rotors.
• Fits 2016-2018 BMW 120i, front and rear, original design aluminum hat rotors (standard rotors).
• Fits 2013-2018 BMW 320i, front and rear, M Sport Brakes.
• Fits 2017-2018 BMW M140i, front and rear, original design aluminum hat rotors.
• Fits 2014-2016 BMW 228i, front and rear, original design aluminum hat rotors.
• Fits 2015-2016 BMW 228i xDrive, front and rear, optional design full cast rotors.
• Fits 2014-2016 BMW 428i, front and rear, optional design full cast rotors (dimpled slotted rotors).
• Fits 2014-2016 BMW M135i, front and rear, original design aluminum hat rotors.
• Fits 2014-2016 BMW M235i, front and rear, optional design full cast rotors.
• Fits 2015-2016 BMW M235i xDrive, front and rear, original design aluminum hat rotors.
• Fits 2013-2015 BMW 118i, front and rear, optional design full cast rotors (dimpled slotted rotors).
• Fits 2014-2015 BMW 328i, front and rear, original design aluminum hat rotors (standard rotors).
• Fits 2012 BMW 118i, front and rear, original design aluminum hat rotors (standard rotors).

What These Rotors Address

• Brake pulsation caused by worn or uneven rotor surfaces
• Reduced braking consistency from heat-affected rotors
• Rotor replacement needs during pad and brake service
• Fitment issues when replacing BMW-specific rotor designs
• Service requirements for front and rear brake overhaul on listed BMW models

Installation Notes and Tips

Verify the rotor design on the vehicle before ordering, since the listed BMW applications include multiple rotor configurations such as standard, full cast, dimpled slotted, and aluminum hat designs. Confirm the exact model, year, and brake package, especially on vehicles noted with M Sport Brakes or xDrive-specific fitment. Part number 4004-31044 should be matched to the vehicle’s original rotor style and axle position before installation.

Quality Assurance

DFC Geospec Rotors are cataloged by Dynamite Friction for application-specific BMW brake service. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.