US Motor Works USEP3530M Fuel Pump Module Assembly

Electric Fuel Pump Module for Heavy-Duty GM Trucks

US Motor Works USEP3530M is an electric fuel pump module assembly for select 2001-2003 Chevrolet Silverado 3500 and GMC Sierra 3500 commercial chassis applications with a secondary fuel tank. It includes a tank seal and wiring harness kit, and it is built for direct replacement use in the fuel delivery system.

Key Features

• Fuel pump module assembly for air and fuel delivery service
• Includes tank seal and wiring harness kit
• Fits 2001-2003 Chevrolet Silverado 3500, commercial chassis with secondary fuel tank
• Fits 2001-2003 GMC Sierra 3500, commercial chassis with secondary fuel tank
• Cross-references Delphi FG0121 for the same application
• Part number USEP3530M for ordering and fitment verification

Product Details

This US Motor Works electric fuel pump module is intended for GM heavy-duty truck fuel system service where the original module has failed or is no longer maintaining proper fuel delivery. The USEP3530M matches the listed commercial chassis, secondary fuel tank applications for Chevrolet Silverado 3500 and GMC Sierra 3500 models from 2001 through 2003. It also cross-references Delphi FG0121 for the same application, making part lookup easier during repair or replacement.

Common Issues This Part Can Address

• Engine cranking with no fuel delivery from the secondary tank
• Hard starting caused by a weak or failed in-tank pump module
• Fuel pressure loss in the secondary fuel system
• Intermittent stalling related to pump or wiring failure
• Fuel gauge or pump circuit problems tied to the module assembly

Installation Notes

Verify the vehicle uses the listed commercial chassis configuration and secondary fuel tank before ordering. Confirm connector and tank seal requirements against the original module, and inspect the fuel tank, wiring, and electrical terminals during replacement. Use proper fuel system safety procedures and follow the vehicle service manual for removal and installation.

Quality Assurance

US Motor Works markets this part as an electric fuel pump module line item for fuel delivery replacement service. The included tank seal and wiring harness kit support a complete repair at the module connection points.