MPA Electrical NM4074 Brake Master Cylinder

Brake Master Cylinder for GM Trucks and SUVs

Restore consistent brake pedal response with this new brake master cylinder from MPA Electrical. Part number NM4074 is a standard replacement unit with an aluminum body, integrated reservoir, and a 1.338-inch bore for vehicles equipped with front disc brakes.

Compatible With 2003-2007 Chevrolet Express 1500, 2007 Chevrolet Silverado 1500 Classic, 2003-2007 GMC Savana 1500, 2007 GMC Sierra 1500 Classic, 2004-2006 Cadillac Escalade ESV, 2003-2006 Cadillac Escalade EXT, 2004-2006 Chevrolet Avalanche 1500, 2004-2006 Chevrolet Silverado 1500, 2004-2006 Chevrolet Suburban 1500, 2004-2006 Chevrolet Tahoe, 2005-2006 GMC Sierra 1500, 2004-2006 GMC Yukon, 2004-2006 GMC Yukon XL 1500, 2004-2005 Cadillac Escalade, 2003-2005 Chevrolet Express 2500, and 2003-2005 GMC Savana 2500 with front disc brakes.

Key Features

• Brand: MPA Electrical
• Part number: NM4074
• Standard replacement brake master cylinder
• Aluminum master cylinder construction
• 1.338-inch bore diameter
• Reservoir included
• Master cylinder cap included
• Uses DOT 3 brake fluid
• 2 mounting holes with 0.425-inch mounting hole diameter
• New condition

Product Details

MPA Electrical brake master cylinders are built to restore braking performance by matching OE specifications through testing against original samples and controlled validation processes. NM4074 is a direct-fit hydraulic replacement for GM applications with front disc brakes, including Chevrolet Silverado 1500, Tahoe, Suburban 1500, Express vans, GMC Sierra 1500, Savana vans, Yukon, and Cadillac Escalade models. This part cross-references Monroe Shocks & Struts (e.g., 18047519) for the same application.

What This Part 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 during normal driving
• Hydraulic pressure issues in front disc brake systems

Installation Notes and Tips

Verify vehicle fitment by year, make, model, and brake configuration before installation. This master cylinder does not include mounting hardware, a brake booster, push rod, gasket or seal, sensor, or brake pressure switch. Bench bleeding is recommended before installation, and the brake system should be filled with DOT 3 fluid only. Confirm the reservoir, cap, and mounting points match the original unit on your Chevrolet Express 1500, GMC Savana 1500, or Cadillac Escalade application.

Quality Assurance

MPA Electrical tests each master cylinder against OE specifications using controlled inspection and validation procedures to support consistent braking performance out of the box. NM4074 is a new standard replacement part built for the listed GM front disc brake applications.