Tractorhead 8,565 #1 Posted October 21, 2018 Hi, because Winter- oil change is short ahead, i wanna use a easier way to drain the old Engineoil. I have an E125V vertical Engine, and not very familar with the threads, used in that Engine. i 've seen on some Engines on Pic's, that guy's mounted a Oil drain extender( a pipe and a arc) for an easier Oil-drain into the Engine. can anybody tells me please, what dimension this thread is? So far as i seen it shall be 1/4" but iam not sure about. Confirming or is it any other Thread? Any info or help would greatly appreciated. regards Stefan Share this post Link to post Share on other sites
Ed Kennell 35,490 #2 Posted October 21, 2018 It is probably a NPT. But I am not familiar with your engine. 3/8" NPT is common on horizontal Kohler engines. 5 Share this post Link to post Share on other sites
