Tecumseh 143 Series Engine, #143.975001, This engine was taken off of a Craftsman 5/20 2 stage snowblower with a bad auger trans. And ran before removal, This engine can be used on many other machines that use a 5.0 engine bolt pattern and 2-3/8 L – 3/4 shaft, the key slot runs the length of the shaft as pictured, belt guides are included, pulleys have been removed and are not included. Engine has been cleaned & painted in some areas, has been tested and checked, spark plug has been cleaned or replaced. Engine has been used and is in overall great shape.