Product review (4 stars): Better-made than the original part and easy to install.  Amazon has best price...
If your dishwasher is leaking or if you hear a "hissing" sound from your dishwasher even when its not running this valve is probably the problem.  Fits perfect and was $15-20 cheaper from Amazon than other sources.  This same valve is used on various Whirlpool and Kitchenaid units and is apparently a common point of failure.  This newer part number replaces the previous part and seems to be better made. Hopefully it will last longer than the original part which ruptured on a my high-end Kitchenaid dishwasher that is only 3 years old.  Installation takes less than 20 minutes and requires only a pair of plyers and a screwdriver.