Product review (5 stars): Easy fix
These worked for my Whirlpool WFC7500VW.  If your motor on this washer ever dies and won't spin, try this first.  Its a cheap fix vs a motor control board or new motor.  Take off the back panel and remove the belt from the motor and pulley.  Remove the wire harness from the motor.  Remove the bolt that holds the motor.  There is just one so this is easy.  Remove the old brushes from the motor.  If they are bad you will notice that they are worn all the way down or in my case the carbon was broken off.  Don't lose the screws.  You will need them to install the new brushes.