MPA Electrical NM1372 Brake Master Cylinder

Brake Master Cylinder for Classic GM Disc Brake Applications

Restore firm, consistent brake pedal response with this MPA Electrical brake master cylinder, part number NM1372. It is a standard replacement unit built for classic Chevrolet models with front disc brakes, including Corvette, Camaro, El Camino, and Nova applications.

Key Features

• Cast iron master cylinder with integral reservoir design
• 1.125 in. bore diameter for front disc brake systems
• Includes master cylinder cap and reservoir
• Uses DOT 3 brake fluid
• Two mounting holes with 0.400 in. mounting hole diameter
• New condition, standard replacement grade
• Brake booster, push rod, sensor, and pressure switch not included

Product Details

MPA Electrical NM1372 is engineered as a brake master cylinder replacement for vehicles equipped with front disc brakes. The cast iron construction and 1.125-inch bore support hydraulic pressure delivery for classic Chevrolet braking systems. This unit is listed for 1967-1976 Chevrolet Corvette, 1969 Chevrolet Camaro, 1967-1969 Chevrolet El Camino, and 1969 Chevrolet Nova with front disc brakes. If you are searching for a brake master cylinder for a 1967-1976 Chevrolet Corvette with front disc brakes or a 1969 Chevrolet Camaro brake master cylinder replacement, NM1372 is built for those applications.

MPA Electrical uses OE sample data and testing protocols to verify dimensional and functional consistency against original specifications. This helps ensure the master cylinder is ready for service after installation. This part cross-references 2621664 and 18001004 for the same application. The part number NM1372 is also useful when comparing replacement options for Chevrolet Corvette, Camaro, El Camino, and Nova brake hydraulic repairs.

Common Problems This Part Can Address

• Low or spongy brake pedal feel caused by internal master cylinder wear
• Brake fluid leakage from a worn hydraulic bore or seals
• Uneven or inconsistent brake pressure delivery
• Reduced braking response in front disc brake systems
• Need for a direct replacement during brake system restoration

Installation Notes and Tips

Bench bleed the master cylinder before installation to reduce trapped air in the hydraulic system. Verify bore size, mounting hole spacing, and brake line port alignment before assembly. Use fresh DOT 3 brake fluid and inspect the brake booster, lines, and wheel cylinders or calipers for wear before returning the vehicle to service. Because mounting hardware, push rod, and brake booster are not included, reuse or source those components separately as needed.

Quality Assurance

MPA Electrical tests each unit against OE specifications using proprietary processes and strict inspection protocols. That approach supports consistent hydraulic performance and fitment for classic Chevrolet brake master cylinder replacement needs.