Agitator not rotating

I have had to replace the agitator gear just inside the agitator, mine did the same thing, I took the agitator apart, removed the plastic gear, the gear has a number on it, you can call sears service dept with the number, also a good idea is to have the model and serial number of the washer, the part was really inexpensive as well, my washer has been working great now for over a year since I replaced mine, if you don't want to get into it like I did, sears also offers service, but I would try to call and get the price on the part first before calling in a service tech, thanks again for your Question, hope that provided you the solution, please rate this for us,
mr.grzz