snowmoboyle 33 #1 Posted April 29, 2015 Hey Guys! Got my dad working on a onan on my 520H 1989 Model. Where is the oil pressure switch on this beast? He has a wiring diagram but it's not jiving with what his 97 520H is wired up as. Thanks for any help! Share this post Link to post Share on other sites
WH nut 553 #2 Posted April 29, 2015 Down by the filter Share this post Link to post Share on other sites
