MPA Electrical NM55386A Brake Master Cylinder

Brake Master Cylinder for Nissan Versa

Restore consistent brake pedal response with this MPA Electrical brake master cylinder, part number NM55386A. It is a standard replacement unit for the 2007-2011 Nissan Versa with front disc brakes, built with an aluminum body, plastic reservoir, and DOT 3 fluid compatibility.

MPA Electrical’s New with front disc brakes product line focuses on direct-fit hydraulic brake components for vehicles that need OE-style braking performance restored. This NM55386A master cylinder is tested against OE specifications using controlled procedures and sample-based validation to help deliver reliable braking performance after installation.

Key Features

• Fits 2007-2011 Nissan Versa, N/A
• Part number NM55386A
• Standard replacement brake master cylinder
• Aluminum master cylinder body with plastic reservoir
• Reservoir included with cap and gasket/seal included
• 0.937 in. bore diameter
• Two mounting holes with 0.340 in. mounting hole diameter
• DOT 3 brake fluid type
• New condition

Detailed Description

This brake master cylinder is engineered for Nissan Versa brake hydraulic service where the original master cylinder has worn internally, developed leaks, or no longer maintains proper hydraulic pressure. The 0.937-inch bore size, included reservoir, and sealed construction support stable brake fluid delivery for vehicles equipped with front disc brakes. Use NM55386A when replacing a failing master cylinder on a 2007-2011 Nissan Versa and you need a standard replacement part that matches the application requirements.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Fix

• Low or sinking brake pedal feel
• Brake fluid leakage at the master cylinder
• Uneven hydraulic pressure in the brake system
• Delayed brake response after pedal application
• Internal seal wear that affects braking performance

Installation Notes and Tips

Before installation, verify the vehicle is a 2007-2011 Nissan Versa with front disc brakes and confirm the bore size and mounting hole layout match the original unit. Transfer only the components required by the application, and bleed the brake system thoroughly after installation to remove air from the hydraulic lines. Use DOT 3 brake fluid only, and inspect the brake booster, lines, and fittings for wear or contamination while the system is open.

Quality Assurance

MPA Electrical tests each brake master cylinder against OE specifications using proprietary processes and strict protocols to help ensure consistent braking performance out of the box. NM55386A is a new standard replacement part built to restore hydraulic brake function on the Nissan Versa platform.