Centric 121.34131 Disc Brake Rotor - Rear

Centric C-TEK Rear Brake Rotor for BMW

The Centric C-TEK Standard Disc Brake Rotor, part number 121.34131, is a rear brake rotor built for BMW applications that call for a 330 mm vented disc. It combines a smooth surface finish with standard rotor construction for consistent braking performance and dependable service life.

Compatible with rear brake service on select 2011-2016 BMW 528i, 2012-2016 BMW 528i xDrive, 2014-2016 BMW 535d, 2014-2016 BMW 535d xDrive, 2014-2016 BMW 535i, 2011-2016 BMW 535i xDrive, and 2012-2016 BMW ActiveHybrid 5 applications.

Key Features

• Centric C-TEK Standard Disc Brake Rotors line for everyday brake service
• Part number 121.34131
• Rear disc brake rotor for BMW fitments listed below
• Vented rotor design for rear axle applications
• Smooth surface type for standard brake pad contact
• 330 mm outside diameter with 20.0 mm nominal thickness
• 75.0 mm center hole diameter and 5-lug mounting pattern
• Floating / DIH disc mounting configuration
• No ABS tone ring included and no bearings included

Product Details

Centric’s C-TEK Standard Disc Brake Rotors line focuses on practical replacement value for a wide range of braking applications. This rotor uses a vented, smooth-faced design with 330 mm outside diameter, 20.0 mm nominal thickness, and 18.4 mm discard thickness, making it a direct-fit rear rotor choice for the BMW 5 Series and ActiveHybrid 5 fitments listed here. The 121.34131 rotor is also cross-referenced to DuraGo BR900984 and Walker Exhaust 45521 for the same application.

Common Brake Issues This Rotor Can Address

• Rear brake pulsation caused by worn or uneven rotor surfaces
• Brake noise related to rotor wear or scoring
• Reduced braking consistency from rotors below service thickness
• Vibration during stops from rotor runout or heat-related wear
• Maintenance replacement for BMW rear brake service intervals

Installation Notes and Tips

Verify rotor dimensions, hub fitment, and rear axle application before installation. Clean the hub mounting surface thoroughly to help reduce runout concerns, and inspect pads, calipers, and hardware condition at the same time. Confirm the rotor meets the vehicle’s rear brake specification for 330 mm disc size and vented construction before final assembly.

Quality Assurance

Centric positions the C-TEK Standard Disc Brake Rotors line as a service-focused replacement option with attention to performance, service life, and value. Part number 121.34131 is built to meet the dimensional requirements listed above for the specified BMW rear brake applications.