Centric 125.34144 Disc Brake Rotor - Front

Centric Premium High Carbon Alloy Rotor

The Centric 125 Series High Carbon Alloy Disc Brake Rotor is built for front brake applications that demand consistent stopping performance and stable pedal feel. Part number 125.34144 is engineered for select BMW 3 Series and 4 Series models with 370mm front disc setups, including M Sport and M Performance brake packages.

Centric Premium High Carbon Alloy Disc Brake Rotors are part of a product line focused on improved metallurgy for quieter operation, better crack resistance, and stronger corrosion resistance in demanding street use.

Key Features

• High carbon alloy construction for improved friction characteristics and braking response
• Molybdenum and chromium alloy content helps resist cracking during repeated stops and higher-load use
• Reduced brake squeal potential with higher-friction European-style pad compounds
• Increased chromium and carbon content for better oxidation resistance
• Vented rotor design with smooth surface and pillar vane style
• Coated hat finish for added corrosion protection at the hub area
• 5-bolt mounting pattern with 79 mm center hole diameter

Detailed Description

Centric 125.34144 is a front disc brake rotor with a 370 mm outside diameter, 30 mm nominal thickness, and 28.4 mm discard thickness. It measures 73.3 mm in overall height and uses a floating mounting type with a pillar vane vented design. These specifications make it a direct replacement for BMW front brake systems that require the larger 370 mm rotor size.

Fits 2017-2020 BMW 440i, front. Fits 2017-2020 BMW 440i Gran Coupe, front. Fits 2017-2020 BMW 440i xDrive, front. Fits 2017-2020 BMW 440i xDrive Gran Coupe, front. Fits 2016-2018 BMW 340i, front. Fits 2017-2018 BMW 340i GT xDrive, front. Fits 2016-2018 BMW 340i xDrive, front. Fits 2014-2016 BMW 335i GT xDrive, front. Fits 2014-2016 BMW 435i, front. Fits 2015-2016 BMW 435i Gran Coupe, front. Fits 2014-2016 BMW 435i xDrive, front. Fits 2015-2016 BMW 435i xDrive Gran Coupe, front. Fits 2013-2015 BMW 335i, front. Fits 2013-2015 BMW 335i xDrive, front. Fits 2013-2015 BMW ActiveHybrid 3, front.

This part cross-references Dorman - HELP 15706 for the same application.

Common Brake Issues It Can Address

• Brake squeal from rotor and pad interaction
• Rotor cracking during repeated hard stops
• Reduced braking consistency under higher heat
• Surface oxidation on exposed rotor areas
• Wear-related replacement needs on BMW front brake systems

Installation Notes and Tips

Verify rotor diameter, thickness, and brake package before installation. This rotor is for front applications only and is listed for BMW models with 370 mm front disc setups, including M Sport Brakes and M Performance Brake configurations where noted. Inspect pads, caliper hardware, and hub condition during service to help ensure even contact and proper rotor seating.

Quality Assurance

Centric’s Premium High Carbon Alloy rotor line uses upgraded metallurgy to support quieter operation, stronger crack resistance, and improved corrosion resistance in demanding braking conditions. Part number 125.34144 is built to match the dimensional requirements of the listed BMW applications.