Fleece SureFlo® Performance Sending Unit (FPE-SF-CUMM-1121) for 2011-2024 Cummins 24V 6.7L

The Fleece SureFlo Performance Sending Unit FPE-SF-CUMM-1121 helps solve fuel delivery problems when running an external lift pump on a 2011-2024 Cummins 24V 6.7L truck. IMPORTANT SureFlo Sending Units DO NOT contain a pump and are only intended for vehicles utilizing an external lift pump or for vehicles not originally equipped with a lift pump. If your application requires a pump, select your appropriate application on the PowerFlo Lift Pump category page.

Problem

Many aftermarket pumps mount external to the fuel tank. Because of this, installers often use a draw straw or drill the fuel tank for a sump. However, both options create drawbacks.

These setups commonly create the ¼ tank issue. When fuel levels drop, the pump may pull air into the fuel system. As a result, cavitation can occur and fuel delivery becomes inconsistent.

Fleece SureFlo Performance Sending Unit Solution

SureFlo performance sending units are designed to work with aftermarket lift pumps and fit directly into your stock sending unit location. The Fleece SureFlo Performance Sending Unit FPE-SF-CUMM-1121 also features factory style quick disconnects that connect to the stock fuel lines at the tank. Because of this design, installation remains clean and requires no cutting or drilling of the tank.

SureFlo Bucket Fuel Delivery Design

SureFlo works by drawing fuel from, and returning fuel to, the bucket assembly at the base of the unit. Because of this design, the pump draws fuel instead of air. As a result, the system helps eliminate the common ¼ tank problem.

In addition, the SureFlo bucket incorporates one way check valves. These valves allow fuel to flow into the bucket more easily when fuel levels are low.

Additional SureFlo Sending Unit Benefits

Our SureFlo performance sending units are also a great alternative for trucks originally equipped without an in tank pump needing to repair a malfunctioning level sender. It also works well for trucks that want to run custom fuel lines directly to the tank.

Features

OEM style fitment that requires no tank cutting or drilling
New fuel level electronics and fuel float
Heavy duty billet aluminum cap
Universal –8 AN ports for professionally plumbing a custom fuel setup
New O-ring or flange seal
With SureFloWith draw straw or sump

Cross-Reference

Year — FPE Part Number — Replaces Dodge/Ram OE Part Number

2011-2024 — FPE-SF-CUMM-1121 — 5145571AA*

Application Notes

SureFlo performance sending units are designed for use in conjunction with an aftermarket externally mounted fuel pump OR as a replacement sending unit for trucks originally equipped without an in-tank low pressure lift pump.

Reference our fitment data for use in Titan and S&B aftermarket fuel tanks.

For MY 2020 and up; this SureFlo will not work with the factory installed 50-Gallon Fuel Tank Option. Use Fleece Part number: FPE-SF-CUMM-2024-50

For optimal performance, this product has been tested to work with aftermarket lift pumps including AirDog II-5G with flow rates up to 220 GPH and Fass with flow rates up to 100 GPH.

Protected under US Trademark Reg. No. 6,878,858, US Patent No. D1,114,168 and US Trademark Reg. No. 6,878,858.

Warranty

1 Year Limited Parts Warranty

For more upgrades and components, browse our full selection of Cummins parts.