TECUMSEH HSSK50-67259s 5 HP HORIZONTAL SHAFT ENGINE USED- OFF LAWN BOY 2 STAGE SNOWBLOWER. For parts or not working- good engine, runs with gas sprayed into carburetor, may need tune up/carb work. Crankshaft is 2 1/4″ long, 3/4″ wide and is keyed and tapped. Engine has NO OIL.