MPA Electrical NM1680 Brake Master Cylinder

Brake Master Cylinder for Ford and Mercury

Restore consistent brake pedal response with this MPA Electrical brake master cylinder, part number NM1680. It is a standard replacement unit for front disc brake applications on select Ford and Mercury vehicles, including the Ford Pinto, Mercury Bobcat, Mercury Monarch, Ford Mustang, and Mercury Cougar.

Built with a cast iron body, integral reservoir, and a 0.938 bore diameter, NM1680 is engineered for direct hydraulic replacement using DOT 3 brake fluid. The cylinder is supplied new and includes a master cylinder cap.

Key Features

• Brand: MPA Electrical
• Part number: NM1680
• Brake master cylinder for front disc brake applications
• Cast iron master cylinder construction
• Integral reservoir design with reservoir included
• 0.938 in. bore diameter
• Standard replacement grade
• Uses DOT 3 brake fluid
• Master cylinder cap included
• Interchange reference: D3ZZ2140A

Detailed Description

MPA Electrical NM1680 is a brake master cylinder built to replace worn or leaking hydraulic units on compatible Ford and Mercury vehicles with front disc brakes. It is listed for 1975-1980 Ford Pinto, 1975-1980 Mercury Bobcat, 1975-1980 Mercury Monarch, 1973 Ford Mustang, and 1973 Mercury Cougar. The cast iron housing and integral reservoir support a direct-fit hydraulic service replacement, while the 0.938 bore diameter helps maintain the original brake system specification.

MPA Electrical uses OE sample data and testing protocols to verify each unit against OE specifications before release. For shoppers searching for a Ford Mustang brake master cylinder or Mercury Cougar master cylinder replacement, NM1680 provides a cataloged match for the listed front disc brake applications.

What This Part Helps Address

• Low or inconsistent brake pedal feel
• External or internal master cylinder fluid leakage
• Brake warning symptoms caused by hydraulic wear
• Reduced braking performance from an aging cylinder bore or seals
• Restoration of proper hydraulic pressure in front disc brake systems

Installation Notes and Tips

Verify vehicle fitment by year, make, model, and front disc brake configuration before installation. This unit includes the reservoir and cap, but does not include mounting hardware, gasket or seal, push rod, brake booster, sensor, mounting bracket, or brake pressure switch. Bench bleeding the master cylinder before installation is recommended, and the brake system should be filled with DOT 3 fluid only.

Fits 1975-1980 Ford Pinto, front disc brakes; fits 1975-1980 Mercury Bobcat, front disc brakes; fits 1975-1980 Mercury Monarch, front disc brakes; fits 1973 Ford Mustang, front disc brakes; fits 1973 Mercury Cougar, front disc brakes.

Quality Assurance

MPA Electrical tests each brake master cylinder against OE specifications using controlled processes and an OE sample library to help ensure consistent performance out of the box. This part cross-references Monroe Shocks & Struts (e.g., D3ZZ2140A) for the same application.