Tecumseh Hm100-159108k 10 HP Horizontal Shaft Engine UsedTecumseh HM80-155391P, 8 HP Horizontal Shaft Engine. Runs on fuel sprayed into carb, may need carb work. Crankshaft is 2 5/16” long X 1” O. It is keyed and tapped. Unit ships without oil. The item “TECUMSEH HM100-159108K 10 HP HORIZONTAL SHAFT ENGINE USED” is in sale.