model # gg9002b serial # 65x626092 what year is it and what is the water pump number
The water pump is simply an impeller -- it's a tube of rubber which spins as the power shaft spins, and the tube has fins which push water through the engine to cool it. Take the old one to a boat store, and you will find one close enough. They aren't finicky, they just want water pushed through them.
