SEI MARINE PRODUCTS- Yamaha Water Pump Kit 689-W0078-A6 25 30HP 1986 1987 1989 1990 With Housing This water pump kit replaces OE#: 689-W0078-A6 and fits 25 and 30 HP Yamaha outboard lower units from 1986-1987 and 1989-1990. It includes the housing.