Fleece Performance PowerFlo In-tank Lift Pump for 2011-2016 Chevrolet/GMC 2500/3500 HD (6.6L) Short Bed - FPE-34563

Fits select 2011-2016 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD trucks (6.6L LML Duramax) with a 6.5' short bed.

The Fleece Performance PowerFlo lift pump is a high-performance in-tank solution designed to protect and optimize your LML Duramax fuel system. From the factory, the LML relies on the CP4 injection pump to pull fuel from the tank under vacuum, which increases stress on the pump and leads to premature failure. The PowerFlo provides positive fuel pressure to the CP4, significantly reducing strain while supporting up to 800 hp, including dual CP3 configurations.

Equipped with an active fill bucket, this assembly eliminates common high-flow fuel system issues like 1/4 tank starvation without requiring tank sumps or draw straws. The dual gerotor pump design ensures maximum reliability and flow capacity while maintaining a quiet, OEM-level operation. For custom setups, the pump outlet and return are threaded to accept -8 O-ring fittings (3/4"-16 thread).

• Direct OEM in-tank replacement utilizing factory fuel lines
• Dual gerotor pump design for increased flow and reliability
• Capable of supporting up to 800 hp
• Active fill bucket prevents 1/4 tank fuel starvation
• Threaded outlet/return: -8 O-ring (3/4"-16 thread)
• Manufacturer Part Number: FPE-34563
• US Patent No. D910,081