Keep fuel moving to your classic GM truck with the US Motor Works Fuel Pump Module Assembly USEP3621S. This tank-mounted fuel-delivery module drops in as a direct-fit replacement for many full-size Chevrolet and GMC C/K pickups — including the 1988-1995 C2500, C3500, K1500, K2500 and K3500, plus the 1995 Chevrolet Silverado; see the Buyer's Guide tab for the complete list.
- Module assembly: An assembled fuel-delivery module that installs in the fuel tank and feeds fuel toward the engine on the listed applications.
- Direct-fit replacement: A direct-fit replacement for the listed vehicles, taking the place of a worn or failed original module.
- Addresses fuel-supply issues: If a failing fuel pump module is the cause of your hard starting, no-start, sputtering under load, or stalling, this unit replaces it.
A whining noise from the tank, extended cranking, loss of power on hills, or intermittent stalling can be signs the fuel pump module may need replacing. These symptoms can have other causes, so diagnose the fuel-delivery system before replacing, and consult the vehicle service information for the correct installation and fastener procedure.
Interchange: Manufacturer part number USEP3621S.
Frequently Asked Questions
What is the US Motor Works USEP3621S?
It is a Fuel Pump Module Assembly (MPN USEP3621S) — a tank-mounted fuel-delivery module that supplies fuel toward the engine on the listed applications.
Which vehicles does it fit?
It's a direct-fit replacement for many 1988-1995 Chevrolet and GMC C/K trucks, such as the C2500, C3500, K1500, K2500, K3500 and the 1995 Chevrolet Silverado. Check the Buyer's Guide tab for the full list.
What are signs the fuel pump module may need replacing?
Hard starting, extended cranking or no-start, sputtering under load, a whining noise from the tank, or stalling can be signs. Diagnose the fuel-delivery system first, since other parts can cause these symptoms.
Is this a direct-fit replacement?
Yes, it is designed as a direct-fit replacement for the listed Chevrolet and GMC applications, taking the place of a worn or failed original module.
Do I need to replace anything else?
Follow the vehicle service information for the correct install and fastener procedure, and inspect related fuel-system components; replace additional parts only as the service procedure directs.
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