Hi,
I have a leak occurring underneath my Whirlpool dishwasher Model DU890DWGU2. I have pin pointed the leak by the pump impeller area. I am wondering if I would need only to replace the worn parts with the Impeller/seal kit Part #AP3108052 or would I need more parts?

Is there also a step my step instruction or video on how to accomplish this task online?

Thanks mtnbike86

If it's making a grinding noise, which it usually is by the time you notice the leak, you will need to replace the entire pump/motor assembly. If you are really handy and have the tools and patience, you can disassemble the motor and replace the front bearing in the motor and use the impeller seal kit. Whirlpool won't sell the bearing or the motor, so you will have to buy one at a bearing shop. Closest one I have found is 6082RS. You will have to cut the old one off the shaft and sand it down to get the new bearing onto it. Alot of work! If you can afford it and want to save on the frustration, just replace the entire pump/motor assembly.

UPDATE
Whirlpool finally pulled their head out and is selling the motors again. Still cheaper to replace the bearing, but replacing the motor is a lot faster. You won't need the Impeller kit, its already on the motor.
ALSO
Don't bother trying to replace the bearing if this is a Kitchen Aid. The motor is slightly different with the bearing on the other side of the motor end. Virtually impossible to replace.