Brembo 09.B338.2X Disc Brake Rotor - Rear

Premium rear brake rotor for BMW

This Brembo disc brake rotor is a direct replacement built to meet or exceed OEM specifications. It uses a drilled braking surface, UV coating, and high carbon cast iron construction to support quieter operation, corrosion protection, and consistent braking feel.

Key features

• Direct replacement disc brake rotor for rear brake service
• Drilled braking surface for improved heat management
• UV coated finish helps protect braking surfaces from corrosion
• High carbon cast iron construction helps reduce noise and vibration
• Fixing screw kit included for straightforward installation
• Intelligent marking shows part number and minimum thickness

Detailed description

Brembo Premium Xtra Cross Drilled UV Coated Rotor 09.B338.2X is engineered for rear brake applications on select BMW models, including BMW X1, BMW 328i, BMW 328i xDrive, BMW 328xi, and BMW 325xi. The vented rotor design, drilled surface, and UV-coated braking plate surfaces work together to support stable braking performance and long-term surface protection. If you are replacing worn rear brake rotors on a BMW X1 or BMW 328i, this rotor is built as an OE-style service part with fitment-specific coverage.

The Premium Xtra Cross Drilled UV Coated Rotor line focuses on replacement rotors that combine corrosion resistance with performance-oriented surface design. Brembo pairs this rotor with a fixing screw kit and clear thickness marking to simplify service decisions during brake maintenance. Part number 09.B338.2X is also referenced in cross applications such as DuraGo BR900774 and PowerStop EBR1019 for the same application.

What it is used for

• Replacing a worn or scored rear brake rotor
• Restoring braking smoothness after rotor wear or heat checking
• Reducing brake noise and vibration associated with aged rotors
• Addressing corrosion on the braking surface and hat area
• Supporting proper brake pad contact during brake service

Installation notes and tips

Fits 2013-2015 BMW X1, rear. Fits 2012 BMW X1, rear. Fits 2007-2013 BMW 328i, rear. Fits 2009-2013 BMW 328i xDrive, rear. Fits 2007-2008 BMW 328xi, rear. Fits 2006 BMW 325xi, rear. Replace rotors and pads together to restore braking performance, and verify minimum thickness before installation. The included fixing screw kit supports a cleaner brake service.

Quality assurance

Brembo develops this rotor as a direct replacement that meets or exceeds OEM specifications. The UV-coated finish is solvent free, and the rotor is designed with service markings for thickness verification. Part number 09.B338.2X is part of Brembo's Premium Xtra Cross Drilled UV Coated Rotor line.