Whirlpool Genuine OEM WP8531743 Dishwasher Float Switch Base Gasket. The float switch base gasket prevents water from leaking through the float switch base.
This part works with the following brands: Whirlpool, Roper, Admiral, Maytag, Hardwick, Jenn-Air, Estate, Magic Chef, Crosley, Inglis, Norge, Modern Maid, Amana, Kenmore, KitchenAid, Caloric, & IKEA.
 
Possible Repair Solution For:

Leaking water.
Please Note: This is intended as a guideline only, as other items can cause the same symptoms.
 
This part is also known as a flat gasket.