fehrrj58 0 #1 Posted 15 hours ago Hi! I'm looking to see if i can get some help with my grandfather’s RJ-58 Serial # 21259. The tractor has a Kohler K91 engine on it. I know this tractor has the original plow as well. I’m just looking to see what I can do to make the tractor last and keep it in good condition. I don’t know much about it. Share this post Link to post Share on other sites