moe1965 766 #1 Posted December 5, 2021 I'm going to do a rebuild on a k 301 what are some of you thoughts about using a new aftermarket piston as apposed to a original kohler replacement one. Share this post Link to post Share on other sites
Achto 29,394 #2 Posted December 5, 2021 2 hours ago, moe1965 said: what are some of you thoughts about using a new aftermarket piston as apposed to a original kohler replacement one. Never had an issue with aftermarket piston. Note - no matter which one you choose AM or OEM don't buy until you have measured the bore of the cylinder and know what size piston you need. Take your new piston with to the machinist so that he can match the bore to the new piston. 1 Share this post Link to post Share on other sites
Gregor 4,847 #3 Posted December 5, 2021 Also take your valves and valve guides, if you plan to replace them. 1 Share this post Link to post Share on other sites
