MPA Electrical NM3084 Brake Master Cylinder

Brake Master Cylinder for GM Front Disc Brake Applications

MPA Electrical NM3084 is a new brake master cylinder built for vehicles with front disc brakes. It is a standard replacement unit with a 1-inch bore, aluminum body, plastic reservoir, and included reservoir cap for a direct service replacement.

Compatible with 2000-2003 Buick LeSabre, 2000-2003 Cadillac DeVille, 2001-2003 Oldsmobile Aurora, and 2000-2003 Pontiac Bonneville, this part number NM3084 supports common GM brake hydraulic service needs. It uses DOT 3 fluid and is supplied as a new replacement master cylinder for brake system restoration.

Key Features

• Brand: MPA Electrical
• Part number: NM3084
• Brake master cylinder for front disc brake applications
• 1-inch master cylinder bore diameter
• Aluminum master cylinder body with plastic reservoir
• Reservoir cap included
• Standard replacement grade
• New condition
• DOT 3 fluid type

Detailed Description

MPA Electrical NM3084 is engineered to restore braking performance by replacing a worn or leaking master cylinder in supported GM vehicles. The unit is tested against OE specifications using controlled inspection and validation processes based on OE sample references, helping deliver consistent hydraulic performance out of the box. This brake master cylinder is a practical replacement for Buick LeSabre, Cadillac DeVille, Oldsmobile Aurora, and Pontiac Bonneville models equipped with front disc brakes.

The aluminum construction helps provide a durable housing, while the plastic reservoir and included cap support routine brake fluid service. As a standard replacement master cylinder, NM3084 is built for direct brake hydraulic repair where original performance has declined due to internal bypass, fluid loss, or pedal travel concerns.

This part cross-references OE numbers 18040242 and 18045192 for the same application.

What It Helps Fix

• Low or sinking brake pedal caused by internal master cylinder wear
• Brake fluid leakage from the master cylinder assembly
• Uneven hydraulic pressure in the brake system
• Extended pedal travel during braking
• Reduced braking response in front disc brake vehicles

Installation Notes and Tips

Before installation, confirm the vehicle is equipped with front disc brakes and verify bore size and mounting hole layout against the original unit. This master cylinder does not include mounting hardware, a push rod, brake booster, or seals, so reuse or source related components as needed during service. Bench bleeding the master cylinder before installation helps remove trapped air and supports proper pedal feel after the brake system is reassembled.

Quality Assurance

MPA Electrical tests each unit against OE specifications using proprietary processes and strict protocols drawn from its OE sample library. That validation approach supports consistent fit and braking performance for supported Buick, Cadillac, Oldsmobile, and Pontiac applications.