Product review (5 stars): Perfect fix for old agitator Kenmore 90 series!
I was very glad that Amazon showed me that others who had bought a washing machine motor coupler had also purchased the agitator dogs! The do it yourself instructions didn't mention checking the agitator dogs.  If your agitator is not rotating and the motor seems to be working, be sure to check the agitator dogs. Mine were broken into pieces so I was glad that I had them on hand after fixing the worn out coupler!!!