I became tired of replacing the worn dogs on my agitator. I replaced it with a single action agitator. When I stored the original agitator, I lost a part. I recently received a set of dogs, and now I wish to use the original agitator again. The appliance parts pros shows a list for my particular model, and in the parts list is # 11 bearing cam driven. Does this help hold the dogs in place? I can't find this part. does it go with my model? s/n lsq9549lkw2