The Fleece Performance FPE-SF-FMC-9907-LB SureFlo Performance Sending Unit is an engineered, drop-in replacement in-tank fuel canister assembly designed specifically for 1999–2007 Ford Super Duty F-250 and F-350 trucks (equipped with the 7.3L or 6.0L Powerstroke diesel) with long bed configurations. Calibrated specifically for the deeper 38-gallon factory tank, this unit integrates an active reservoir bucket with dual one-way inlet check valves, a heavy-duty CNC-machined billet aluminum top plate, dual -8 AN female O-ring ports, and a new electronic level-sensing rheostat. It completely eliminates low-fuel starvation and aerated fuel delivery while seamlessly supporting factory plumbing or high-flow aftermarket lift pumps (such as FASS or AirDog) with zero cutting or drilling required.

Quick Specs & Kit Inclusions

• Bed Configuration: Long Bed (calibrated for factory 8-foot bed / approx. 38-gallon tank depth)
• Top Plate Construction: CNC-machined billet aluminum cap with integrated O-ring boss ports
• Port / Fitting Compatibility: Integrated dual -8 AN female ORB ports (includes factory quick-connect push-lock adapter fittings for 100% plug-and-play OE line plumbing)
• Fuel Reservoir Design: Active internal bucket canister utilizing high-flow one-way directional flapper valves to trap reserve fuel
• Level Sender: Includes brand-new electronic fuel level sending card and float arm matched to factory gauge resistance sweeps
• Emissions Status: 50-state legal (fuel delivery replacement component)
• Direct OEM Interchange References: Ford F81Z-9275-CA, F81Z-9275-AJ, 6C3Z-9275-EA, 5C3Z-9275-BA, 6C3Z-9275-BA, 6C3Z-9275-VA
• What's in the Box: (1) Fleece SureFlo Assembled Sending Unit (Long Bed), (1) Fuel Level Float Arm, (2) Factory Quick-Connect Line Adapters, (1) Flange Sealing O-Ring, and Installation Hardware

Problem Solved: Curing 1/4-Tank Fuel Starvation & Broken "Hutch/Harpoon" Pickups

The factory fuel pickup inside 1999–2007 Ford Super Duty tanks relies on a fragile plastic pickup foot (the "duckbill" strainer). Over years of continuous exposure to hot returned diesel fuel, this plastic becomes brittle, cracks, and completely breaks off right at the 1/4-tank fuel level mark. Once fuel drops below this height, or during hard acceleration, heavy braking, or steep hill climbs, the exposed pickup tube draws air into the fuel system. On HEUI-injected 7.3L and 6.0L engines, entrained air causes severe injector cavitation, loud engine cackle, loss of power, and premature intensifier piston failure. The Fleece SureFlo permanently solves this by routing returned fuel straight into an internal reservoir bucket equipped with one-way check valves, keeping the fuel pickup submerged all the way down to empty.

Fitment

• 1999–2003 Ford F-250 Super Duty 7.3L Powerstroke Turbo Diesel (Long Bed / 8-ft Bed)
• 1999–2003 Ford F-350 Super Duty 7.3L Powerstroke Turbo Diesel (Long Bed / 8-ft Bed)
• 2003–2007 Ford F-250 Super Duty 6.0L Powerstroke Turbo Diesel (Long Bed / 8-ft Bed)
• 2003–2007 Ford F-350 Super Duty 6.0L Powerstroke Turbo Diesel (Long Bed / 8-ft Bed)
• Fitment Note: Specifically engineered for pickup trucks equipped with 8-foot long beds (approx. 38-gallon tank). Does not fit short beds (use part # FPE-SF-FMC-9907-SB), Excursion rear tanks, or Cab & Chassis aft-axle tanks.

Safety & Tank Access: Run fuel level down as low as possible before starting. Access the sending unit by either supporting the tank with a transmission jack and unbolting the tank straps, or by removing the bed mounting bolts (six or eight T50/T55 Torx) and sliding the truck bed back 2 to 3 feet. Factory Unit Removal: Disconnect the electrical wiring harness connector. Use 5/16" and 3/8" fuel line disconnect tools to release the factory supply and return lines. Clean road grime away from the lock ring flange using compressed air. Using a brass punch or fuel tank lock ring tool, rotate the retaining ring counter-clockwise to unlock. Carefully lift the factory sending unit out and remove the old flange seal. Tank Sump Cleaning: Inspect the bottom of the fuel tank with a flashlight. Siphon out any settled sediment, slime, or broken plastic pieces from the original pickup foot. Float Arm Assembly: Snap the included fuel float arm securely into the side pivot bracket on the Fleece SureFlo assembly, verifying the wiper arm sweeps smoothly across the rheostat board without binding. Canister Insertion & Sealing: Seat the supplied new O-ring squarely into the fuel tank flange sealing groove. Carefully insert the SureFlo bucket assembly at an angle into the tank opening so the float clears internal baffles. Press the billet aluminum top plate down flat against the tank flange, clocking the ports toward the factory fuel line routing direction. Lock Ring Installation: Reinstall the factory retaining lock ring over the billet cap. Rotate the lock ring clockwise until it reaches the positive factory stops. Plumbing Connections: Factory Fuel Lines / Stock Lift Pump: Thread the included factory quick-connect adapter fittings into the -8 AN ORB ports on the billet cap. Snap the factory push-lock supply and return lines firmly onto the adapters until locked. Aftermarket Lift Pump (FASS / AirDog): Thread standard -8 AN male to -8 AN ORB fittings (sold separately) directly into the cap ports to plumb custom 1/2" supply and return lines, bypassing factory quick-connects entirely. Final Wiring & Verification: Plug in the factory electrical connector. Add at least 5 gallons of fresh diesel fuel. Turn the ignition key to "RUN" (KOEO) for 30 seconds to prime the system and observe the dashboard fuel gauge to verify accurate level calibration. Start the truck and inspect all top fittings for complete, leak-free operation.