Fleece Performance FPE-SF-GM-1116-LB SureFlo Fuel Sending Unit Duramax Long Bed - 2011-2016

The Fleece Performance SureFlo Performance Sending Unit is engineered to solve the common problems associated with external aftermarket lift pumps on 2011-2016 GM Duramax long bed trucks. Unlike traditional draw straws or tank drilling methods that can lead to air cavitation and half-tank fuel starvation issues, the SureFlo provides a complete drop-in solution that installs directly into your factory sending unit location.

How SureFlo Works:

The SureFlo system draws fuel from and returns fuel to an integrated bucket assembly at the base of the unit. This design ensures your pump always receives liquid fuel rather than air, eliminating cavitation and the notorious half-tank starvation problem. The bucket incorporates one-way check valves that allow fuel to flow in easily, even at the lowest fuel levels, maintaining consistent fuel delivery throughout the tank's range.

Key Features:

• Direct OEM fitment requiring no cutting, drilling, or permanent tank modifications
• Factory-style quick disconnect fittings for seamless integration with stock fuel lines
• New fuel level sensor electronics and float for accurate gauge readings
• Heavy-duty billet aluminum cap for durability and corrosion resistance
• Universal -8 AN ports for professional-grade custom fuel system plumbing
• Includes new O-ring or flange seal for leak-free installation
• Includes -8 AN to 3/4-16 straight male fitting with O-ring

The SureFlo is ideal for trucks that came without an in-tank pump, those needing to replace a faulty level sender, or enthusiasts building custom fuel delivery systems. This unit is designed for use with external lift pumps rated up to 200 GPH and provides the cleanest, most professional installation available without compromising your fuel tank.