your right Dale ,horsepower doesn`t mean diderly shit, all comes down to the tension on the belt, pulley condition , tentioner alignment and age of the belt. I bought a couple of Japanese belts of Ebay,good quality and reasonably priced, cant see any reason to change the water pump because it was perfect. Guess it depends if you do your own work or pay someone to rip you off. did the whole job in under 2 hours, amazing how quiet it is now though. one thing to remember , not all belts have the same profile,hence the whyne? which means incorect fit and probable failure.