MPA Electrical NM52270 Brake Master Cylinder

Brake Master Cylinder for Nissan Pathfinder

Restore consistent brake pedal response with this MPA Electrical brake master cylinder for 1987-1988 Nissan Pathfinder models with front disc brakes. Part number NM52270 is a standard replacement unit 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 line focuses on replacement brake hydraulics for vehicles that need OE-style fit and function. This NM52270 master cylinder is tested against OE specifications using sample-based validation and controlled inspection processes to help deliver reliable braking performance after installation.

Key Features

• Fits 1987-1988 Nissan Pathfinder, N/A, New with front disc brakes
• Part number NM52270 for brake master cylinder replacement
• Aluminum master cylinder body with plastic reservoir
• 0.9375 in. bore diameter for hydraulic brake pressure delivery
• Includes reservoir, cap, and gasket or seal
• Standard replacement grade for brake hydraulic service
• Uses DOT 3 brake fluid
• Two mounting holes with 0.345 in. mounting hole diameter

Detailed Description

NM52270 is a brake master cylinder for Nissan Pathfinder applications listed for 1987-1988 models with front disc brakes. It is engineered as a direct replacement brake hydraulic component to help restore pedal feel and braking response when the original master cylinder shows internal wear, leakage, or pressure loss. The aluminum housing and integrated plastic reservoir support a service-ready design, while the included cap and seal help complete the assembly.

This part number, NM52270, is built for DOT 3 brake fluid systems and uses a 0.9375-inch bore diameter. For buyers searching for a 1987 Nissan Pathfinder brake master cylinder or 1988 Nissan Pathfinder brake master cylinder, this unit provides a fitment-specific replacement option for the listed front disc brake configuration.

What It Helps Fix

• Low or sinking brake pedal caused by master cylinder wear
• Brake fluid leakage from the master cylinder body or reservoir area
• Uneven or inconsistent hydraulic pressure in the brake system
• Delayed brake response during normal pedal application
• Loss of braking performance related to internal seal failure

Installation Notes and Tips

Before installation, confirm the vehicle is a 1987-1988 Nissan Pathfinder with front disc brakes and verify the mounting pattern, bore size, and fluid type match the existing system. Mounting hardware, brake booster, push rod, and brake pressure switch are not included. Bench bleeding the master cylinder before installation helps remove trapped air and supports proper brake pedal feel after the system is filled and bled.

Quality Assurance

MPA Electrical tests each unit against OE specifications using proprietary processes and strict inspection protocols to support consistent braking performance out of the box. This NM52270 master cylinder is a new replacement part built to meet standard brake hydraulic service requirements for the listed Nissan Pathfinder applications.