MPA Electrical NM4104 Brake Master Cylinder

Brake Master Cylinder for Colorado and Canyon

Restore consistent brake pedal response with this new brake master cylinder from MPA Electrical. Built as a standard replacement for front disc brake applications, it is engineered to match OE specifications for the 2004-2008 Chevrolet Colorado, 2004-2008 GMC Canyon, and select Isuzu i-Series trucks.

MPA Electrical NM4104 is a new aluminum master cylinder with an integrated reservoir and cap, a 1-inch bore diameter, and DOT 3 fluid compatibility. It is tested against OE references to help deliver reliable braking performance after installation.

Key Features

• Brand: MPA Electrical
• Part number: NM4104
• Standard replacement brake master cylinder
• Aluminum construction
• 1-inch master cylinder bore diameter
• Reservoir and master cylinder cap included
• DOT 3 brake fluid type
• 2 mounting holes with 0.340-inch mounting hole diameter
• New condition

Product Details

This brake master cylinder is built for front disc brake vehicles and is intended to restore hydraulic pressure at the brake pedal. The aluminum body helps keep the unit lightweight, while the OE-based testing process supports consistent output and fitment. If you are replacing a worn or leaking master cylinder on a Chevrolet Colorado, GMC Canyon, or Isuzu i-280, i-290, i-350, or i-370, NM4104 provides a direct replacement option for the listed applications. This part cross-references ACDelco 19209275 for the same application.

Vehicle Fitment

• Fits 2004-2008 Chevrolet Colorado, new with front disc brakes.
• Fits 2004-2008 GMC Canyon, new with front disc brakes.
• Fits 2007-2008 Isuzu i-290, new with front disc brakes.
• Fits 2007-2008 Isuzu i-370, new with front disc brakes.
• Fits 2006 Isuzu i-280, new with front disc brakes.
• Fits 2006 Isuzu i-350, new with front disc brakes.

What It Helps Fix

• Low or inconsistent brake pedal feel
• Brake fluid leakage from a worn master cylinder
• Loss of hydraulic pressure in the brake system
• Delayed or uneven brake response
• Brake warning symptoms tied to master cylinder wear

Installation Notes

Verify the vehicle is equipped with front disc brakes before ordering. Bench bleeding the master cylinder before installation helps remove trapped air from the hydraulic circuit. Inspect brake lines, fittings, and the booster interface for wear or contamination before final assembly. Use only DOT 3 brake fluid as specified.

Quality Assurance

MPA Electrical tests each unit against OE specifications using controlled procedures and sample-based reference data to support consistent braking performance out of the box. NM4104 is a new replacement part built to standard replacement requirements.