MPA Electrical NM55511 Brake Master Cylinder

Brake Master Cylinder for Nissan Versa

Restore consistent brake pedal response with this MPA Electrical brake master cylinder for the 2009-2011 Nissan Versa with front disc brakes. Part number NM55511 is a standard replacement built with an aluminum body, plastic reservoir, and DOT 3 fluid compatibility for direct hydraulic system service.

MPA Electrical’s New with front disc brakes product line focuses on replacement master cylinders for vehicles equipped with front disc brake systems. Each unit is tested against OE specifications using controlled procedures and sample-based reference data to help deliver proper hydraulic performance out of the box.

• Fits 2009-2011 Nissan Versa, N/A, new with front disc brakes
• Standard replacement brake master cylinder
• Aluminum master cylinder construction
• Plastic reservoir included
• Master cylinder bore diameter: 0.876 in.
• Gasket or seal included; master cylinder cap included
• DOT 3 brake fluid type
• 2 mounting holes; 0.344 in. mounting hole diameter
• Interchange reference: D6010-EL01A

Detailed Description

NM55511 is a brake master cylinder for Nissan Versa models from 2009 through 2011 with front disc brakes. It is engineered as a direct hydraulic replacement for worn or leaking master cylinders, with an aluminum housing, integrated plastic reservoir, and a 0.876-inch bore diameter to match the specified brake system requirements. The reservoir, cap, and seal are included, while the brake booster, push rod, mounting hardware, sensor, and brake pressure switch are not included.

This part number, NM55511, is built for drivers and repair shops servicing a Nissan Versa brake system that needs restored pedal feel and hydraulic pressure. It cross-references Monroe Shocks & Struts (e.g., 172286) for the same application.

What It Helps Fix

• Low or sinking brake pedal feel
• External or internal master cylinder fluid leakage
• Uneven hydraulic pressure in the brake system
• Delayed brake response after pedal application
• Brake warning concerns caused by master cylinder wear

Installation Notes and Tips

Verify the vehicle is a 2009-2011 Nissan Versa with front disc brakes before installation. Bench bleeding the master cylinder before final assembly helps remove trapped air from the hydraulic circuit. Confirm the bore size, mounting hole spacing, and reservoir layout match the original unit, and use DOT 3 brake fluid only. Inspect the brake booster and related hydraulic lines for wear or contamination during service.

Quality Assurance

MPA Electrical tests each brake master cylinder against OE specifications using proprietary processes and strict protocols to support consistent hydraulic performance. NM55511 is a new standard replacement part designed to restore braking performance for the specified Nissan Versa applications.