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Fleece Performance PowerFlo In-Tank Fuel Lift Pump – FPE-34789 2004.5–2007 LLY & LBZ Duramax
The Fleece PowerFlo is the only true drop-in, in-tank lift pump capable of supporting up to 800 horsepower on the LLY and LBZ Duramax. Unlike external pumps that require tank modifications, sumps, or draw straws, the PowerFlo installs directly in place of the factory pump and retains your original fuel lines and tank components.
Key Benefits
- Positive fuel pressure to the CP3 – Eliminates the factory vacuum-based fuel delivery that overworks the injection pump and contributes to premature CP3 failure.
- Supports up to 800 HP – Dual OEM-quality gerotor pumps deliver the volume needed for high-performance builds while remaining quiet and reliable.
- No more ¼-tank issues – The active fill bucket design keeps the pump primed and eliminates aeration problems commonly seen with high-flow systems.
- Clean, factory-style install – No cutting the tank, no external plumbing, and significantly faster installation than traditional high-flow lift pumps.
- Aftermarket ready – Pump outlet and return are threaded for -8 AN O-ring fittings (¾"-16) for easy integration with custom fuel systems.
Specifications
- Operating pressure: 10–13 psi at idle
- Validated for up to B20 biodiesel
- Lifetime limited parts warranty (registration required)
- Direct OEM replacement
Ideal for stock or modified 2004.5–2007 Silverado/Sierra 2500HD/3500HD trucks running single fuel tanks. A smart, reliable upgrade that protects your CP3 while giving you the fuel delivery capacity for serious power.
Fleece Performance PowerFlo In-Tank Fuel Lift Pump – FPE-34789 2004.5–2007 LLY & LBZ Duramax
The Fleece PowerFlo is the only true drop-in, in-tank lift pump capable of supporting up to 800 horsepower on the LLY and LBZ Duramax. Unlike external pumps that require tank modifications, sumps, or draw straws, the PowerFlo installs directly in place of the factory pump and retains your original fuel lines and tank components.
Key Benefits
Positive fuel pressure to the CP3 – Eliminates the factory vacuum-based fuel delivery that overworks the injection pump and contributes to premature CP3 failure.
Supports up to 800 HP – Dual OEM-quality gerotor pumps deliver the volume needed for high-performance builds while remaining quiet and reliable.
No more ¼-tank issues – The active fill bucket design keeps the pump primed and eliminates aeration problems commonly seen with high-flow systems.
Clean, factory-style install – No cutting the tank, no external plumbing, and significantly faster installation than traditional high-flow lift pumps.
Aftermarket ready – Pump outlet and return are threaded for -8 AN O-ring fitti[...]
Fleece Performance PowerFlo In-Tank Fuel Lift Pump – FPE-34789 2004.5–2007 LLY & LBZ Duramax
The Fleece PowerFlo is the only true drop-in, in-tank lift pump capable of supporting up to 800 horsepower on the LLY and LBZ Duramax. Unlike external pumps that require tank modifications, sumps, or draw straws, the PowerFlo installs directly in place of the factory pump and retains your original fuel lines and tank components.
Key Benefits
- Positive fuel pressure to the CP3 – Eliminates the factory vacuum-based fuel delivery that overworks the injection pump and contributes to premature CP3 failure.
- Supports up to 800 HP – Dual OEM-quality gerotor pumps deliver the volume needed for high-performance builds while remaining quiet and reliable.
- No more ¼-tank issues – The active fill bucket design keeps the pump primed and eliminates aeration problems commonly seen with high-flow systems.
- Clean, factory-style install – No cutting the tank, no external plumbing, and significantly faster installation than traditional high-flow lift pumps.
- Aftermarket ready – Pump outlet and return are threaded for -8 AN O-ring fittings (¾"-16) for easy integration with custom fuel systems.
Specifications
- Operating pressure: 10–13 psi at idle
- Validated for up to B20 biodiesel
- Lifetime limited parts warranty (registration required)
- Direct OEM replacement
Ideal for stock or modified 2004.5–2007 Silverado/Sierra 2500HD/3500HD trucks running single fuel tanks. A smart, reliable upgrade that protects your CP3 while giving you the fuel delivery capacity for serious power.