Where is the serial number on an Onan engine?
Onan should have a serial number stamped on the block, usually at the front/muffler area. 2nd indication, is the style of the crankcase breather. Finally, is the painted logo of the series of engine. that is usually located on the cowling, located rear of the engine. It could be hidden since that is up against the firewall.
DA: 28 PA: 77 MOZ Rank: 91