SEI MARINE PRODUCTS- Yamaha Water Pump Kit 63V-W0078-01 9.9 15 HP 2 Stroke 4 Stroke 1996-Current This water pump kit replaces OE#: 63V-W0078-01 and fits 9.9 HP(1996-current), T9.9 HP (2005-current), 9.9 HP 4 stroke (2005), 15 HP 2 stroke (1996-current), and 15 HP 4 stroke (1998-current) Yamaha outboard lower units. It does not include the housing.