HY GAS ENGINE BOAT PUMP( OLD CODE HY383000 ) RC Boat water pump kit! These pumps were designed for use with gas boats running and will allow plenty of water circulation while boat is standing still or at low rates of speed. Very easy to install and will not share engine power when it pumping water . It's a very hi-quality pump with a neverr fail proof diaphragm. Each package includes the water pump, tygon tubing 20cm , 90 degree fitting for your intake manifold,