Motor Head110 7 #1 Posted July 1, 2013 Does anyone know the correct s/g belt size on a K-181 on a 856? Share this post Link to post Share on other sites
rmaynard 16,363 #2 Posted July 1, 2013 I believe it is 3/8 x 31". I had an 856 and I put a new belt on it. The sleeve that I saved says Gates 6731. Don't know why I saved the sleeve. Got rid of the tractor 2 years ago. Share this post Link to post Share on other sites
