Diesel fuel transfer pumps are available at Harbor Freight Tools and Northern Tool + Equipment. The Harbor Freight pumps feature a 12-volt battery. These companies produce diesel fuel transfer pumps that pump up to 12 gallons per minute.
Harbor Freight diesel fuel pumps also feature a heavy duty cast iron on both inlet and outlet ports. The ports are 3/4 inch in diameter. Harbor Freight pumps also have a die-cast aluminum body. The pumps have a self-priming rotating vane and a bypass valve. Harbor Freight pumps also feature a 30 minute-per-hour duty cycle.
The Northern Tool + Equipment product uses 120 volts of alternating current. Its diesel transfer pump can pump up to 22 gallons per minute. The Northern Tool + Equipment diesel transfer pumps have inlets and outlets that are 1 inch in diameter. These pumps are also self-priming and have a bypass valve.