Big Jake 18 #1 Posted December 1, 2014 I wood like to put one in a 1977 C120 will it fit under the hood? Share this post Link to post Share on other sites
varosd 1,185 #2 Posted December 1, 2014 should be 1988 for the P series Onan The D's had a different Onan earlier than that. D owners will chime in to the date Share this post Link to post Share on other sites
Desko 552 #4 Posted December 1, 2014 D160 apparently D180-200 had them said an eBay seller but I don't think they did just D160s which was I believe 77-80 they used them for the B series pretty much an outdated P series Share this post Link to post Share on other sites
Don1977 604 #5 Posted December 2, 2014 (edited) Fireman put a 20 HP in a C-81. The battery is going to be in the way on a 1976 or 1977. Edited December 2, 2014 by Don1977 Share this post Link to post Share on other sites
SPINJIM 1,978 #6 Posted December 2, 2014 Might fit on a C-121, but not a C-120. As Don1977 said, the battery and gas tank are still mounted under the hood on the C-120. On the C-121, the gas tank was moved under the seat fender, and the battery was moved to where the gas tank was, to make room for Onan twin engines. The change was made in 1978. The last year for the C-120 was 1977. Jim Share this post Link to post Share on other sites
