Brockport Bill 1,661 #1 Posted February 14, 2023 I might have oil leak at the oil sentry switch for a Kohler M14 engine on a 314h. I have tightened switch unit with no success and plan to try teflon as solution??? If I need new switch, I am trying to determine the correct part number???? I have been all over the various online sites Toro, Parts Tree, Jacks etc -- plus the Kohler Engine site - - trying to I.D. the correct oil switch part number.... and its availability? It appeared it was # 92-7278 - but then maybe not? Then I found a # 25-704-03 and a 25-704-03-s .......then I found a variation as 25-704-04-s. All the parts sites show both the "03" as well as "04" switches being unavailable any longer. I did find a few on ebay for big $$$ - but I want to be sure its the correct part # -- not sure what the difference would be of the 03 versus the 04 at end of part number...or the importance of the suffix "S" ? Last question - have many owners just removed the switch if they have a thread leak and added a plug to stop a leak? Thanks Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,041 #2 Posted February 14, 2023 This switch? 2 Share this post Link to post Share on other sites
SPINJIM 1,981 #3 Posted February 14, 2023 (edited) I had to replace the oil sentry switch on my KT17. I found that the leak was not around the threads, but that the top had a small crack where the metal part and the porcelain part were joined. Eventually, the crack got bigger, and blew oil all over the engine. About a year ago, the part number from my local Toro dealer was 24-099-03S for $26.20. Don't know if the part is the same for the M14 and the KT17, but worth checking. Good luck Jim Edited February 14, 2023 by SPINJIM 1 Share this post Link to post Share on other sites
Brockport Bill 1,661 #4 Posted February 14, 2023 4 hours ago, SPINJIM said: I had to replace the oil sentry switch on my KT17. I found that the leak was not around the threads, but that the top had a small crack where the metal part and the porcelain part were joined. Eventually, the crack got bigger, and blew oil all over the engine. About a year ago, the part number from my local Toro dealer was 24-099-03S for $26.20. Don't know if the part is the same for the M14 and the KT17, but worth checking. Good luck Jim i have two C175s - with KT17 engine - fortunaetly i do not have that problem with either........... Interesting to learn the local Toro dealer had the switch sentry for you in stock - KT17 switch is a different part number than the switch number for M12 and M14 hp Kohler... which is no longer available ---- Share this post Link to post Share on other sites
Brockport Bill 1,661 #5 Posted February 14, 2023 6 hours ago, gwest_ca said: This switch? thanks - saw that -- good important info - if you have any info on correct part number per my original post i would appreciate Share this post Link to post Share on other sites
SPINJIM 1,981 #6 Posted February 14, 2023 If you find a good Toro dealer, preferably one that was a Wheel Horse dealer, they might be able to give you an equivalent item number. My dealer down here is Metzler Mower, (717) 687-7995. At least one member of the family is a WH collector, and usually attends the WH Show; very customer friendly. If they can research the new item number, they could probably ship to you. Jim Share this post Link to post Share on other sites
biged77 113 #7 Posted February 14, 2023 I removed mine and plugged the hole during a rebuild. A member here needed a switch so I sent it to him. I check the oil level before starting each time so I really don't need the switch. I have two more WHs that still have the switches but if I do a rebuild on these or if they start leaking I will probably remove them. Share this post Link to post Share on other sites
