I looked and searched,no answer. So heres my question,I have a 95 Mariner 20hp. Awesome motor btw!! I want to change the water pump,nothings wrong with it mind you,i have a nice stream out the peehole and runs cool and great. Just preventative measures. I bought the motor over a year ago and ive changed the plugs and changed the lower unit oil and dismantled and cleaned the carbs, i have the clymer book. Now my question,do i just change the impellor?? what about seals and gaskets?? Or is just buying and replacing the impellor ok? Thank you all for your time. You guys and gals are the best!!