Product review (3 stars): Old dishwasher owners beware!
Entered my model number and my inlaws 40 year old Whirpool Dishwasher was listed as using this kit. I only needed the impeller and thought what the heck would a few extra parts hurt. $25 and id be a hero to the inlaws.
Well several hours of work, much more disassembly than i ever expected, use of my dremel to cut out the old impeller support post and i was golden. Maybe a newer dishwasher would have been easier but 40 years of use and submersion in water had caused the impeller support post to become one with the motor shaft. I not only had to cut out the bushing and base of the support post, but had to grind off the old post from the motor shaft. A lot of cussing and uncomfortable head in the dishwasher hours later, i had a looser fit than i wanted but it all worked.
I got my gold star and an atta boy and was told the dishwasher never worked so good.

I also had to lock the motor by sticking an allen key up into the bottom of it in order to break the bolt loose that secures the impeller to the motor shaft. Much more difficult a job than anticipated. Read all the 5 star reviews and thought this will be a piece of cake. What no one mentions is that in order to use the new impeller, you have to use the impeller support post as the impeller is not an exact replacement and would not just drop in. It is matched to the support post supplied in the kit and would not fit the motor shaft after removing the old impeller. Might not be the case for your dishwasher or on newer models but it was on this Model KUDD230Y1 Whirlpool Dishwasher.