vocivictim 1 #1 Posted November 24, 2025 Long time lurker. First time posting. Can anyone help me with the size/length/threads of the two starter mounting bolts for this tractor? Thanks! Share this post Link to post Share on other sites
stevasaurus 23,534 #2 Posted November 24, 2025 Not sure this will help. Someone with a 520 should be along before long. 1 Share this post Link to post Share on other sites
JCM 10,492 #3 Posted November 24, 2025 3 hours ago, vocivictim said: Long time lurker. First time posting. Can anyone help me with the size/length/threads of the two starter mounting bolts for this tractor? Thanks! WH Part # NN10376 Cap Screw 5/16-18 x 3-1/2 for Onan Starter 2 Share this post Link to post Share on other sites
lynnmor 8,382 #4 Posted November 24, 2025 Those bolts are easy to cross thread and difficult to get started. Be sure that you can easily turn them in by hand with the starter off. I mention this because it sounds like you are having difficulty. The bosses with the mounting holes can break, so check that with a bright light. If you are having a problem, report back, perhaps we can help. 1 Share this post Link to post Share on other sites
ri702bill 10,951 #5 Posted November 24, 2025 It MAY be worthwhile to run that size tap thru - by hand - to chase the threads.... 3 Share this post Link to post Share on other sites
vocivictim 1 #6 Posted December 10, 2025 Resolved. Thank you!! 1 Share this post Link to post Share on other sites
