The crankshaft on this engine is 1-1/8" x 3-5/32" the CV22S-67526 has been replaced with the CV23S-75513. If you use any other engine listed here the original engine utilizes an air cleaner that mounts horizontally so the muffler sits directly under it. If you buy an engine that is not this way, you will have to change it and all the throttle linkage as well. You can use an engine with a longer shaft, but you will have to cut it off or add a spacer at the bottom to keep the pulleys from moving. There may be minor differences but parts should be interchangeable as needed.
