Product review (5 stars): Whirlpool Gold = Perfect Fit
I purchased a new Whirlpool Gold Dishwasher in Sep '08 and it stopped working in Jan '13.  I went to a few stores to look at new dishwashers and decided to try to fix my appliance prior to buying a new one.  I located the part # of my dishwasher and found the substitute part # of W10237169.  Purchase was quick and easy with one step buying at Amazon. The motor arrived 2 days after purchase from HomeAppliancePart.  I watched a few video's and had everything done in around 40 minutes.  No extra parts required and the dishwasher works like new.  If I had to install it again I would have lubricated the outer seal to ease the install process.

 I highly recommend Amazon and HomeAppliancePart.