Product review (5 stars): Just what our Whirlpool washer needed to get it spinning again.
The switch assembly fit perfectly and worked fine.  It was not hard to change.  I watched a couple of uTube videos for advice on changing this switch and wiring harness.  You need to remove two screws in the back of the control housing to tilt the housing back to unhook and remove the connector. You do NOT have to remove the sheet metal wrapper from the washer base, you can push the tub sideways enough to allow access to the clips that hold the wiring and access the bottom switch mounting screw.  New screws are not included, so you must save and re-use the screws.  A stubby phillips screwdriver helps.  Turns out, our switch had been replaced once before by cutting the wires near the switch and splicing in the new switch with "wire nut" connectors, a bad idea. These switches must be a consistent problem for Whirlpool top loaders.  This switch assembly has been in use for a couple of weeks with no problem.  I diagnosed the problem by lifting and closing the lid while the washer was supposed to be spinning.  The switch was erratic.  An electrical tester showed the switch was closing.  I suspect the contacts were burned and would not carry the required current.  For the low cost of this switch, replace it if your washer works well otherwise but won't spin.