SEI MARINE PRODUCTS- Yamaha Water Pump Kit 6H3-W0078-02 50 60 70 HP 2 Stroke 1997-Current w/o Housing This water pump kit replaces OE#: 6H3-W0078-02 and fits 50, 60, and 70 HP 2 stroke Yamaha outboard lower units from 1997-current. It does not include the housing.