Jabsco Light Duty Reversible Diesel Transfer Pump

The Jabsco Light Duty Reversible Diesel Transfer Pump (Model 18680-1000) is a compact, self-priming vane pump engineered specifically for fuel transfer between vessel tanks. With a flow rate of 7.9 US gallons per minute and the ability to self-prime from dry conditions up to 3 feet, this pump eliminates the need for gravity-fed or manual transfer methods. The integral reversing switch allows operators to control flow direction, making it ideal for balancing fuel loads between port and starboard tanks on boats where weight distribution and tank management are critical.

Built as a rotary vane pump, the unit handles diesel fuel reliably without the complexity of gear or centrifugal designs. The pump head can be mounted at 90-degree angles, providing installation flexibility in tight engine compartments or fuel system layouts. It operates against discharge heads up to 20 feet, allowing fuel to be transferred to elevated tanks or through substantial vertical runs. The 6.45-pound weight and compact 7 x 6 x 9-inch footprint make it suitable for vessels where space is limited. This light-duty classification suits smaller craft, fishing boats, and auxiliary fuel systems rather than high-volume commercial or industrial applications.

Boaters managing multi-tank fuel systems benefit from the reversible design—no need to disconnect and relocate plumbing to change transfer direction. Weekend anglers transferring fuel between auxiliary tanks and the primary system, as well as cruising sailors balancing ballast loads, find the self-priming capability saves time at the dock or on the water. The pump is also suitable for winterization procedures, fuel system maintenance, and emergency fuel distribution where portable, manual-start portability is less critical than steady, reliable flow at moderate volumes.