Indiana_Steve 124 #1 Posted November 11, 2016 Took the piston out of my '72 K241S Kohler and it is stamped with an "A". Is this a standard piston? Share this post Link to post Share on other sites
Hossenfeffa 49 #2 Posted November 12, 2016 Most oversize pistons are marked as such, however, best bet is to measure Share this post Link to post Share on other sites
Indiana_Steve 124 #3 Posted November 12, 2016 Have nothing to measure with at the moment. The A would equal what size? .010 over? Share this post Link to post Share on other sites
slammer302 2,154 #4 Posted November 12, 2016 I believe the A stands for the style of piston. Not the size. But it will probably be standard if it doesn't have any other stamps on it. 1 Share this post Link to post Share on other sites
Achto 26,548 #5 Posted November 12, 2016 48 minutes ago, Indiana_Steve said: The A would equal what size? .010 over? Over sized pistons will be stamped with the over size on the top. Example .010, .020, .030 ect. Not sure what the A means, it could just be a factory mark. Share this post Link to post Share on other sites
illinilefttackle 399 #6 Posted November 12, 2016 Stop by your local parts place or machine shop- they will Mic it for free- Al Share this post Link to post Share on other sites
