Product review (1 stars): Quick and Cheap Fix for Many Whirlpools.
My machine had started acting up, sometimes wouldn't spin, or wouldn't execute a "drain and Spin"  or 'Rinse and Spin".  I got it limping along after I checked error codes (who knew a machine without a digital readout had a diagnostic mode?!)  but I think my limited success was just coincidence.  The part was simply failing over time.  It could've been the wiring harness, which costs a lot more.  But this part fixed so many other machines, I decided to cross my fingers for $30 and hope this was the culprit.  Super-easy to install (notice the tabs on the backside of the wiring plug when you go to remove it from the bad actuator).  Word of caution:  right after I hooked up the machine I tried to start a cycle, and all I got was clicks and whirrs again- ugh!!  I thought I'd guessed wrong on the part.  I decided to run thru another diagnostic mode (which takes you all of 20 seconds)  and that must have reset it somehow.  It worked first shot after that.  Can't have the washing machine out of commission!  This part was identical to the original, and nearly half the price of other sites.  At the rate that I've seen them go bad (online)  maybe you should keep an extra on hand!  My machine was only 3 years old.
UPDATE 13 months later:  It appears that this part has failed-again!  One would think that the manufacturer would redesign a part that is famous for failing and bringing misery to so many.  I'm ordering it one last time;  when this one goes, you can bet the farm that my next washer won't be a Whirlpool/Maytag!! Had to revise my 5-star rating for a part that only lasted 13 months in a dry, clean environment (second floor laundry room) with typical use in a 'family of 4' household.  TOBAL!