Product review (5 stars): The part worked just fine. ...
This worked just fine in my Whirlpool Dishwasher. However, before you buy this item, verify two things:
1) That this is the correct gasket. Find either a parts list, or a good 'exploded" diagram with a detail of the parts to ensure that this is the correct gasket.
2) Also, open up your dishwasher & check the "strike plate" that the door latches to. If it is plastic, then you'll want to replace it (this part also has a replacement metal strike plate). If it's already metal, then the strike plate is superfluous. Do a little more digging to see if you can find the gasket w/o the strike plate at a better price.

WARNING: Amazon has these gaskets at wildly different prices. ... eBay, too! So do a little shopping once you confirm the correct part number. Also, YouTube has a walk through of how to do the replacement. Just search for "whirlpool dishwasher gasket replacement".