Restore OEM fuel system performance with the ACDelco GM Genuine Parts MU1657 Fuel Pump & Level Sensor Module, built to GM Original Equipment standards for proper fit, quiet operation, and dependable fuel delivery. This complete assembly includes the fuel pump, fuel level sensor, and sealing components, making it an easy all-in-one replacement when your fuel pump is failing or your gauge readings become inaccurate.

Designed for select 2004–2007 Chevrolet Suburban and 2004–2007 Chevrolet Avalanche models, the MU1657 helps restore consistent fuel pressure for smoother starts, reliable performance, and improved drivability. If you’re dealing with hesitation, hard starting, fuel starvation, or a fuel gauge that can’t make up its mind, this module is the correct OE-style fix.

Key Features

• Part Number: ACDelco MU1657
• GM Genuine Part – OE fit, form, and function
• Includes fuel pump, fuel level sensor, and seal/sealing components
• Helps restore reliable startup and smooth engine performance
• Designed for quiet operation and consistent fuel pressure
• Direct replacement for worn or failing fuel pump modules

Fitment

• 2004–2007 Chevrolet Suburban
• 2004–2007 Chevrolet Avalanche