MPA Electrical NM52278 Brake Master Cylinder

Brake Master Cylinder for Pathfinder

Restore consistent brake pedal response with this MPA Electrical brake master cylinder, part number NM52278. It is a standard replacement unit for 1988-1990 Nissan Pathfinder models with front disc brakes, built with an aluminum body, plastic reservoir, and included cap and seals for a direct hydraulic service replacement.

Key Features

• Fits 1988-1990 Nissan Pathfinder, front disc brakes
• MPA Electrical NM52278 brake master cylinder
• Aluminum master cylinder construction
• Plastic reservoir included
• Master cylinder bore diameter: 0.9375 in.
• Uses DOT 3 or DOT 4 brake fluid
• Gasket or seal included
• Master cylinder cap included
• Standard replacement grade

Product Details

The MPA Electrical NM52278 is engineered as a brake master cylinder replacement for Nissan Pathfinder applications from 1988 through 1990 with front disc brakes. It is built to OE specifications using tested manufacturing processes to help restore hydraulic braking performance and pedal feel. The aluminum master cylinder housing, plastic reservoir, and 0.9375-inch bore diameter support a service-ready replacement for the original brake hydraulic component.

MPA Electrical’s New with front disc brakes product line focuses on direct-fit brake hydraulic parts for vehicles that require a specific brake configuration. For Pathfinder owners searching for a 1988-1990 Nissan Pathfinder brake master cylinder, NM52278 provides the correct application details and core construction features needed for a proper repair.

Common Problems This Part Helps Address

• Low or inconsistent brake pedal response
• Internal master cylinder seal wear
• Brake fluid leakage at the hydraulic unit
• Reduced braking performance from a failing master cylinder
• Brake system service needs on front disc brake Pathfinder models

Installation Notes and Tips

• Verify the vehicle is a 1988-1990 Nissan Pathfinder with front disc brakes before installation.
• Bench bleed the master cylinder before connecting brake lines to reduce trapped air in the hydraulic system.
• Use clean DOT 3 or DOT 4 brake fluid only.
• Inspect brake lines, fittings, and the booster interface during replacement.
• Mounting hardware, brake booster, push rod, sensor, and pressure switch are not included.

Quality Assurance

MPA Electrical tests each brake master cylinder against OE specifications using controlled procedures and an OE sample library to help ensure consistent braking performance out of the box. Part number NM52278 is a new standard replacement brake master cylinder for the listed Pathfinder fitment.