Fleece Performance PowerFlo In-tank Lift Pump for 2001-2004 Chevrolet/GMC Silverado/Sierra 2500/3500 (6.6L)

Fits select 2001-2004 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 trucks (6.6L V8 Duramax LB7).

The Fleece Performance PowerFlo lift pump is the ultimate in-tank solution for LB7 Duramax owners seeking increased fuel flow and reliability. Designed as a direct OEM replacement, this lift pump installs into the factory fuel tank in a fraction of the time required for traditional frame-mounted pumps. By retaining the factory fuel lines and integrating a new sending unit with updated electronics and a fresh fuel level float, it restores accurate gauge readings while supporting higher performance demands.

The PowerFlo features an active fill bucket that eliminates common diesel fueling issues like 1/4 tank starvation, removing the need for tank sumps or draw straws. While it integrates seamlessly with factory systems, it is also aftermarket-ready; the pump outlet and return are threaded to accept -8 O-ring fittings (3/4"-16 thread) for those running custom fuel lines or external filtration.

• Direct in-tank replacement for GM OE part AC Delco 89060639
• Active fill bucket prevents fuel starvation at low tank levels
• Retains factory fuel lines for simplified installation
• Includes new sending unit electronics and fuel level float
• Threaded outlet/return for -8 O-ring fittings (3/4"-16 thread)
• Manufacturer Part Number: FPE-PF-GM-0104