Matthew Schnell 0 #1 Posted July 26, 2021 Does anyone have any recommendations in what kind of spark plug I should put in my 418-8 garden tractor? Share this post Link to post Share on other sites
pfrederi 18,660 #2 Posted July 26, 2021 (edited) Champion RV17YC... i don't use Champions in the rest of my WHs but I have never found a for sure cross over... Edited July 26, 2021 by pfrederi 1 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,472 #3 Posted July 26, 2021 From Kohler operator manual for M18 and M20 Share this post Link to post Share on other sites
squonk 43,784 #4 Posted July 26, 2021 4 minutes ago, pfrederi said: Champion RV17YC... i don't use Champions in the rest of my WHs but I have never found a for sure cross over... Autolite 26 2 Share this post Link to post Share on other sites
