MPA Electrical NM55442 Brake Master Cylinder

Brake Master Cylinder for Nissan and INFINITI

Restore consistent brake pedal response with this new brake master cylinder from MPA Electrical. Built as a standard replacement for front disc brake applications, Part Number NM55442 is engineered for direct service on select Nissan 370Z and INFINITI models.

MPA Electrical’s New with front disc brakes product line focuses on replacement parts for vehicles equipped with front disc brake systems. This master cylinder is tested against OE specifications using controlled processes and sample-based validation to help deliver reliable braking performance after installation.

Key Features

• Brand: MPA Electrical
• Part Number: NM55442
• Brake master cylinder for brake hydraulic service
• Standard replacement grade
• Aluminum master cylinder body with plastic reservoir
• Reservoir included with cap and gasket/seal included
• 1-inch master cylinder bore diameter
• Uses DOT 3 brake fluid
• 2 mounting holes; mounting hardware not included
• Brake booster, push rod, sensor, mounting bracket, and brake pressure switch not included

Detailed Description

MPA Electrical NM55442 is a new brake master cylinder designed to restore hydraulic braking performance on select Nissan 370Z and INFINITI applications with front disc brakes. The aluminum housing, plastic reservoir, and included cap and seal support a clean replacement for worn or leaking original equipment. With a 1-inch bore diameter and DOT 3 fluid specification, this unit is built for standard brake system service where consistent pedal feel and fluid pressure are required.

Compatible With 2009-2020 Nissan 370Z, 2014-2017 INFINITI QX50, 2014-2015 INFINITI Q60, 2013 INFINITI EX37, 2008-2013 INFINITI G37, 2008-2012 INFINITI EX35, and 2007-2008 INFINITI G35, all noted for front disc brakes. Part Number NM55442 is a direct-fit brake hydraulic replacement for these applications.

This part cross-references no listed alternate part numbers for the same application.

What It Helps Fix

• Low or inconsistent brake pedal pressure
• Brake fluid leakage from the master cylinder body or reservoir area
• Soft or sinking brake pedal feel caused by internal seal wear
• Reduced hydraulic response in the brake system
• Brake warning symptoms related to master cylinder failure

Installation Notes and Tips

Verify vehicle fitment by year, make, model, and front disc brake configuration before installation. Bench bleed the master cylinder before connecting brake lines to help remove trapped air from the hydraulic circuit. Use clean DOT 3 brake fluid only, and inspect the brake booster, lines, and fittings for wear or contamination during service. Mounting hardware is not included, so reuse or source the required fasteners as needed.

Quality Assurance

MPA Electrical tests each brake master cylinder against OE specifications using proprietary processes and strict validation protocols. That process helps ensure consistent braking performance right out of the box for Nissan 370Z and INFINITI brake hydraulic repairs.