MISFANS FN401 Cordless Fuel Transfer Pump with Auto-Stop and 51-Inch Hose

What matters most

Refueling a tractor, ATV, or generator from a fuel can is easier when you can pump instead of lifting and pouring. The MISFANS FN401 is a cordless fuel transfer pump with a hand-trigger nozzle and automatic shutoff. Need a more controlled way to transfer fuel? Its auto-stop sensor cuts the flow when the receiving tank reaches capacity and signals with an audible beep. The pump is designed for gasoline and diesel, with a stated flow rate of up to 5 GPM.

The FN401 offers a choice of power connections for different work settings. Its battery dock fits DeWalt 20V and Milwaukee 18V lithium-ion slider packs, while the included 12V car cigarette lighter adapter provides another way to power the pump. The tool is listed as bare tool, so compatible battery packs are not included. For people already using one of those battery platforms, the cordless setup can make fuel transfer practical in a field, at a dock, or around a property without relying on a nearby outlet.

Buyers often praise the pumping speed and auto-shutoff function. Feedback on fit and leaks at the pump attachment is mixed, so matching the setup to the fuel container is an important part of getting ready to use it.

Size & fit

A 51-inch hose gives the nozzle reach between a fuel source and a receiving tank. The kit includes fuel-container adapters for neck sizes listed as 2 inches, 2.1 inches, 2.75 inches, and 3.75 inches. These options support use with different fuel cans and jugs, choose the adapter that matches your container’s opening and secure the connection before transferring fuel. The pump uses a bung-mount style and is described as a universal fit for vehicles including cars, trucks, motorcycles, RVs, tractors, ATVs, and UTVs.

Practical tips

Set the fuel can and receiving tank in a stable position, then place the hose and nozzle so the fuel can flow into the intended opening. Use the hand trigger to control the nozzle during transfer, and let the automatic shutoff sensor signal when the receiving tank reaches capacity. The audible beep provides a clear cue to stop and attend to the transfer. For a cordless setup, use a compatible DeWalt 20V or Milwaukee 18V battery, for vehicle-powered use, connect the included 12V cigarette lighter adapter.

Compared with a basic manual siphon or pouring spout, this pump adds powered transfer, a trigger nozzle, and automatic shutoff. That combination is useful when filling equipment from a can is a regular task and controlled delivery matters. Keep the connection and hose properly positioned for the fuel container and receiving tank you are using.

Before you decide

What fuel can the MISFANS FN401 transfer? It is described for gasoline and diesel, including transfers from a fuel can or barrel.

Which power sources can I use? The pump accepts DeWalt 20V or Milwaukee 18V lithium-ion slider batteries. An included 12V car cigarette lighter adapter offers an alternate power connection, battery packs are not included with the bare tool.

How does the automatic shutoff work? A sensor at the nozzle tip detects when the receiving tank reaches capacity, stops the flow, and gives an audible beep. The hand-trigger nozzle lets you manage the transfer as you fill.

Buying verdict

The MISFANS FN401 brings powered fuel transfer, a 51-inch hose, and automatic shutoff together in a setup that can serve vehicles and equipment around a home, farm, or jobsite. Its battery-platform options and included 12V adapter make it adaptable to different refueling settings, while the supplied container adapters help accommodate several listed neck sizes. It’s a practical choice for routine gasoline or diesel transfers where reducing manual lifting and controlling flow are priorities.