MPA Electrical NM55429 Brake Master Cylinder

Brake Master Cylinder for BMW Front Disc Brake Applications

Restore consistent brake pedal feel with this MPA Electrical brake master cylinder, part number NM55429. It is a standard replacement unit for BMW models equipped with front disc brakes, with an aluminum body, 1.0 bore diameter, and DOT 4 fluid compatibility.

MPA Electrical’s New with front disc brakes product line focuses on direct-fit brake hydraulics for BMW applications, using OE sample references and testing protocols to match factory specifications for dependable braking performance.

Key Features

• Standard replacement brake master cylinder
• Aluminum construction for OE-style fit and function
• 1.0 bore diameter
• Gasket or seal included
• Two mounting holes with 0.356 mounting hole diameter
• DOT 4 fluid type
• New condition
• MPA Electrical NM55429

Detailed Description

This brake master cylinder is built for BMW vehicles with front disc brakes and is engineered to restore hydraulic braking performance. The aluminum housing, 1.0 bore size, and standard replacement design support proper pedal response and fluid pressure delivery. Part number NM55429 is a direct reference for buyers replacing a worn or leaking master cylinder on BMW 325i, 328i, 335i, X1, and related applications.

This part cross-references BMW OE numbers 34316764131 and 34336779720 for the same application. If you are searching for a BMW 328i brake master cylinder, BMW 335i master cylinder replacement, or a BMW X1 brake hydraulic repair part, NM55429 is built for those front disc brake configurations.

Vehicle Fitment

• Fits 2012-2015 BMW X1, N/A, New with front disc brakes
• Fits 2008-2013 BMW 135i, N/A, New with front disc brakes
• Fits 2007-2013 BMW 328i, N/A, New with front disc brakes
• Fits 2009-2013 BMW 328i xDrive, N/A, New with front disc brakes
• Fits 2007-2013 BMW 335i, N/A, New with front disc brakes
• Fits 2009-2013 BMW 335i xDrive, N/A, New with front disc brakes
• Fits 2011-2013 BMW 335is, N/A, New with front disc brakes
• Fits 2009-2011 BMW 335d, N/A, New with front disc brakes
• Fits 2007-2008 BMW 328xi, N/A, New with front disc brakes
• Fits 2007-2008 BMW 335xi, N/A, New with front disc brakes
• Fits 2006 BMW 325i, N/A, New with front disc brakes
• Fits 2006 BMW 325xi, N/A, New with front disc brakes
• Fits 2006 BMW 330i, N/A, New with front disc brakes
• Fits 2006 BMW 330xi, N/A, New with front disc brakes

Installation Notes and Tips

• Verify the vehicle is equipped with front disc brakes before ordering.
• Confirm bore size, mounting hole count, and mounting hole diameter against the original unit.
• Reservoir, brake booster, push rod, mounting bracket, sensor, and brake pressure switch are not included.
• Use the correct DOT 4 brake fluid and bleed the hydraulic system thoroughly after installation.
• Inspect brake lines, seals, and related hydraulic components for wear before completing the repair.

Quality Assurance

MPA Electrical tests each brake master cylinder against OE specifications using proprietary processes and strict protocols based on a large OE sample library. NM55429 is a new replacement part built to restore braking performance on BMW front disc brake applications.