Johnson Pump First Mate HP 400 GPH 12V - Threaded Port

The Johnson Pump First Mate HP 400 GPH 12V with threaded port is a compact, reliable bilge pump designed for both recreational and commercial vessels that require effective water removal. This pump is particularly suitable for center consoles, cabin cruisers, and fishing boats, addressing the common issue of bilge accumulation during extended time on the water.

With a flow rate of 400 gallons per hour, it efficiently handles dewatering tasks without the bulk or power draw associated with larger pumps. The self-priming diaphragm mechanism allows the pump to operate effectively even when the intake lines are initially dry, ensuring reliable performance in various conditions. Its 12-volt DC operation is compatible with standard marine electrical systems, drawing moderate current to protect your battery bank.

The First Mate HP is favored by experienced boaters for backup systems, auxiliary dewatering, or as a primary pump on smaller crafts where space and weight are critical. The threaded port connection facilitates easy installation with standard marine fittings, making it an excellent choice for both new builds and existing setups.