Unlike a car motor, boat engines use the cool water from below the vessel to keep cool. There are two main types of marine cooling systems that boat engine manufacturers install on a boat. A raw water cooling system sucks the water in through a strainer and then cycles it through the engine block. That water then usually exits through the exhaust and out the back or below the boat. A closed-loop cooling system runs water through a series of heat exchangers, which avoids having any raw saltwater inside through the engine block. 

Xylem offers a full range of Jabsco engine cooling pumps. These pumps, known for their longstanding tradition of innovation, are engineered to effectively cool your engine resulting in better engine performance and fuel economy. Built to last, they feature a rugged and compact design with good flow and wear-resistant impellers. Suitable for use in a wide range of marine cooling solutions, including heat exchanger, keel and direct cooling systems, these pumps are perfect for both offshore adventures and dockside use. Available in a range of different sizes, mounts, and marine quality bronze and stainless-steel construction to meet all your needs.