One of the original engines HMSK80-155418T has a 3/4" x 2-5/16" main shaft on it. Please note: We had a customer that said that his snow blower had the Tecumseh HM80-155171F which has two shafts, the second shaft is 5/8" diameter. If your engine only has one shaft on it, you could use the Briggs engine listed below, along with the mounting base plate.
