MPA Electrical NM1633 Brake Master Cylinder

Brake Master Cylinder for Front Disc Brake Applications

Restore hydraulic brake performance with this new brake master cylinder from MPA Electrical. Built for vehicles with front disc brakes, Part Number NM1633 is a standard replacement unit for select Chrysler, Dodge, and Plymouth applications from the 1974-1981 model years.

MPA Electrical’s New with front disc brakes product line focuses on direct-fit brake hydraulic replacements for older vehicles that need dependable pedal response and consistent fluid pressure. This NM1633 master cylinder is built with an integral reservoir, cast iron construction, and a 1.031-inch bore for the specified applications.

Key Features

• Brand: MPA Electrical
• Part Number: NM1633
• Brake master cylinder for front disc brake vehicles
• Standard replacement grade
• Cast iron master cylinder body
• Integral reservoir design with reservoir included
• 1.031-inch master cylinder bore diameter
• Uses DOT 3 brake fluid
• Master cylinder cap included
• New product condition

Detailed Description

MPA Electrical NM1633 is a brake master cylinder engineered to restore braking performance on select Chrysler, Dodge, and Plymouth vehicles equipped with front disc brakes. The unit is tested against OE specifications using sample-based validation and controlled inspection processes to help deliver consistent hydraulic operation out of the box. This part cross-references 3580093 and 3580242 for the same application.

Compatible With 1974-1978 Chrysler New Yorker, 1974-1978 Chrysler Newport, 1974-1977 Chrysler Town & Country, 1974-1975 Chrysler Imperial, 1974-1978 Dodge Ramcharger, 1974-1976 Dodge Monaco, 1975-1978 Dodge B100, 1975-1978 Dodge B200, 1975-1978 Dodge D100, 1975-1977 Dodge W100, 1977-1978 Dodge D150, 1977-1979 Dodge W150, 1980 Dodge B300, 1981 Dodge B250, 1981 Dodge B350, and 1981 Plymouth PB150, all with front disc brakes.

What It Helps Address

• Low or inconsistent brake pedal pressure
• Internal hydraulic leakage in the master cylinder
• Brake fluid loss at the master cylinder assembly
• Reduced braking response during normal driving
• Wear-related failure in an original brake master cylinder

Installation Notes and Tips

Verify bore diameter, mounting hole layout, and brake system configuration before installation. This master cylinder includes a reservoir and cap, but does not include mounting hardware, seals, a push rod, or a brake booster. Use DOT 3 brake fluid and bleed the system thoroughly after installation to remove trapped air.

Quality Assurance

MPA Electrical tests each unit against OE specifications using proprietary procedures and strict inspection protocols to support consistent braking performance. The NM1633 is a new standard replacement brake master cylinder built for the listed front disc brake applications.