Description:
The Cummins Lift Pump Gasket (Part# 3939258) is an OEM-spec gasket used in Cummins diesel fuel systems to seal the lift (fuel transfer) pump to the engine block or pump mounting flange. A proper seal is critical to prevent fuel leaks, air intrusion, and fuel pressure loss that can lead to poor engine performance or hard starting.
Features:
Part#: 3939258
Brand: Cummins
Product Type: Lift Pump Gasket
Application: Fuel transfer / lift pump
Function: Seals lift pump to engine
Material: Fuel-resistant gasket material
Installation Location: Between lift pump and mounting surface
Operating Environment: Diesel fuel, heat, vibration
Condition: New
Fitment: OEM direct replacement
Brand: Cummins
