MPA Electrical NM3023 Brake Master Cylinder

Brake Master Cylinder for GM Front Disc Brake Applications

The MPA Electrical NM3023 brake master cylinder is a standard replacement part for select Chevrolet, Buick, Oldsmobile, and Pontiac vehicles with front disc brakes. Built with an aluminum body, integrated reservoir, and cap, it is engineered to restore consistent hydraulic braking performance for the listed applications.

MPA Electrical’s New with front disc brakes product line focuses on direct-fit brake hydraulics for specific OE-style applications. This NM3023 master cylinder is tested against OE specifications using controlled inspection processes to help deliver reliable brake pedal response after installation.

Key Features

• Part number: NM3023
• Brake master cylinder for brake hydraulic service
• Standard replacement grade
• Aluminum master cylinder construction
• Master cylinder bore diameter: 0.945 in.
• Reservoir included
• Master cylinder cap included
• 2 mounting holes
• New condition
• Interchanges with 18021217 and 18030912

Detailed Description

This NM3023 brake master cylinder is built for vehicles equipped with front disc brakes and is listed for 1995-2001 Chevrolet Lumina, 1994-1997 Oldsmobile Cutlass Supreme, 1994-1996 Buick Regal, 1994-1996 Pontiac Grand Prix, and 1994 Oldsmobile Cutlass Cruiser. It is a direct hydraulic replacement for restoring brake pressure transfer in the master cylinder assembly. This part cross-references 18021217 and 18030912 for the same application.

What It Helps Address

• Low or inconsistent brake pedal feel
• Internal hydraulic leakage in the master cylinder
• Brake fluid loss at the master cylinder assembly
• Reduced braking response in front disc brake systems
• Wear-related failure in the original brake master cylinder

Installation Notes and Tips

• Verify vehicle fitment by year, make, model, and brake configuration before installation.
• Bench bleed the master cylinder before connecting brake lines.
• Inspect brake lines, fittings, and the booster interface for wear or contamination.
• Mounting hardware, seals, push rod, brake booster, and pressure switch are not included.
• Use fresh brake fluid and bleed the system thoroughly after installation.

Quality Assurance

MPA Electrical tests each unit against OE specifications using proprietary processes and strict inspection protocols to support consistent braking performance out of the box. The NM3023 is a new, standard replacement master cylinder designed for the listed Chevrolet Lumina, Buick Regal, Oldsmobile Cutlass Supreme, Pontiac Grand Prix, and Oldsmobile Cutlass Cruiser applications.