MPA Electrical NM51875 Brake Master Cylinder

Brake Master Cylinder for Toyota Front Disc Brake Applications

The MPA Electrical NM51875 brake master cylinder is a standard replacement for select Toyota models with front disc brakes. Built with a cast iron master cylinder body, plastic reservoir, and DOT 3 fluid compatibility, it restores hydraulic pressure for consistent brake pedal response on the road.

Compatible with 1979-1982 Toyota Corona, 1979-1981 Toyota Celica, and 1986-1987 Toyota Pickup with front disc brakes, this NM51875 master cylinder is engineered to match OE specifications using tested manufacturing processes and strict inspection protocols.

Key Features

• Brand: MPA Electrical
• Part number: NM51875
• Brake master cylinder for brake hydraulics service
• Cast iron master cylinder construction
• Plastic reservoir with reservoir cap included
• Gasket or seal included
• 0.875 in. bore diameter
• 4 mounting holes with 0.350 in. mounting hole diameter
• DOT 3 brake fluid type
• New condition, standard replacement grade

Detailed Description

MPA Electrical NM51875 is a brake master cylinder built for Toyota vehicles equipped with front disc brakes. The design uses a cast iron body for durability, a plastic reservoir for fluid storage, and a 0.875-inch bore diameter to support proper hydraulic operation. This part number NM51875 is a direct-fit style replacement for service work on Toyota Corona, Toyota Celica, and Toyota Pickup applications listed below.

This part cross-references Monroe Shocks & Struts (e.g., 4720114222, 4720120320) for the same application. The MPA Electrical product line focuses on replacement brake hydraulics that are tested against OE specifications, helping ensure consistent performance out of the box.

What This Part Helps Address

• Low or inconsistent brake pedal feel
• Brake fluid leakage at the master cylinder
• Loss of hydraulic pressure in the brake system
• Brake warning symptoms related to master cylinder wear
• Reduced braking response on front disc brake Toyota applications

Installation Notes and Tips

Before installation, confirm the vehicle uses front disc brakes and matches the listed year, make, and model. Transfer only the components required by the application, bench bleed the master cylinder before final installation, and fill the system with DOT 3 brake fluid. Verify all brake lines and sealing surfaces are clean before tightening connections.

Fits 1979-1982 Toyota Corona, N/A. Fits 1979-1981 Toyota Celica, N/A. Fits 1986-1987 Toyota Pickup, N/A.

Quality Assurance

MPA Electrical tests each unit against OE specifications using proprietary processes and strict protocols to help deliver consistent braking performance after installation. The NM51875 is a new standard replacement brake master cylinder built to restore hydraulic function for the listed Toyota applications.