I am puzzled too because when I put the info in, I get a completely different transmission number and the image shows front wheel drive and not rear wheel drive. put that transmission number in and the part says all wheel drive rear. So I have no idea. Might be something one is going to have to match. Prices online are showing between about $50 good used to $200 which makes no sense. The average being around $120. Might need a serial number to figure out exactly what is needed and/or match the old one. In general, the drives outlast the mowers so maybe something else is going on here.