Yamaha - Chrome pump kit - 6H3-W0078-0A-00Yamaha Chrome Water Pump Kit Cooling System Service 6H3 W0078 0A 00 Overview When youre going into a water pump, its worth doing it right the first time. Ive seen too many quick impeller swaps come back with the same issues because the rest of the pump was worn out. A full kit like this gives you a clean reset on the whole system. Once its done, you know your cooling flow is where it needs to be every time youre out running. Key Features Complete Pump