I'm in the process of replacing my harmonic balancer on my 2000 Honda Accord 4 cylinder 2.3l . the problem is I keep receiving the wrong pulley that doesn't fit or I get a pulley that has a bigger power steering pulley ( 5.25 ) on it than the original ( 4.25 ). Will the one with the bigger pulley be ok?

 

Your probably better off just to keep looking around for a original size, maybe even just get a used one from a wrecker? Having the bigger pulley will only increase your pump rpm and possibly could work fine or also make the pump bearing wear out faster.