Fleece Performance SureFlo Performance Sending Unit – FPE-SF-CUMM-0509

Eliminate the dreaded ¼-tank issues and improve fuel delivery with the Fleece Performance SureFlo Performance Sending Unit. Designed specifically for trucks running an aftermarket externally mounted lift pump, this direct-fit replacement solves the common problems of air ingestion and pump cavitation that occur when fuel levels drop below ¼ tank.

The SureFlo unit draws fuel from (and returns it to) a dedicated bucket assembly at the base of the sender. One-way check valves keep the bucket full even at very low fuel levels, ensuring your lift pump always pulls liquid diesel instead of air. Installation is clean and simple—no tank cutting, drilling, or sumps required. Factory-style quick-connect fittings adapt to your stock fuel lines at the tank for a professional, leak-free setup.

Key Features

• OEM-style direct-fit design – no tank modifications needed
• Resolves ¼-tank air ingestion and cavitation issues with external lift pumps
• Heavy-duty billet aluminum cap
• New fuel level electronics and float for accurate gauge readings
• Universal -8 AN ports for custom fuel system plumbing
• Factory-style quick-connect fittings for stock fuel lines
• Includes new O-ring/flange seal
• Compatible with S&B 52-gallon tanks (reads accurately)

Not recommended for lift pumps rated over 200 GPH.