SEI MARINE PRODUCTS- Yamaha Water Pump Kit 63D-W0078-01 40 50 60 HP 2 Stroke 4 Stroke 1995-Current Not including the C40 or T50 Engines This water pump kit replaces OE#: 63D-W0078-01 and fits 40, 50, and 60 HP 2 stroke/ 4 stroke Yamaha outboard lower units from 1995-current. It does not include the housing. It will not fit C40 or T50 models.