Product review (1 stars): Amazons model verification system failed and I got the wrong part.
Re-verified that according to Amazon it is the correct door gasket for my model dishwasher, dwc4910aaw. Have gotten it correctly installed and now the dishwasher door will not close. Close inspection shows me the original gasket is 3/8 thick and new one is 1/2 inch. It can be fitted into the channel, but is too thick,1/2 inch deep whereas original part is 3/8 inch. Thought the old gasket was just compressed from age, but no the replacement is really the wrong size and cannot work.  Now I must return it and Amazon apparently does not even have the right part.