Product review (2 stars): Instructions are good, but this wasn't what I was led to ...
Ordered this part (3374621) on 3-6-16 for my Whirlpool Dishwasher model DU8500XB-1 and received part on 3-9-16.  I was expecting a complete part as pictured, so that all I had to do was remove the old part and bolt on the new part. What I received was bag of parts and the main body of the inlet valve. Had to build the inlet valve following a set of instructions. This kit was designed to cover numerous makers and parts.  Instructions are good, but this wasn't what I was led to believe I was purchasing.  I followed the instructions and configured the replacement vale for my model. The valve works, but causes water hammering as noted by another reviewer.  Noise is annoying when the dishwasher is filling with water...I don't think the savings for this part are worth the additional noise.