Here are your parts
Replacement parts for WHIRLPOOL KUDS01FLSS3 UNDERCOUNTER DISHWASHER | AppliancePartsPros.com
See the attachment for the tech sheet/wiring diagram
There is a manual available for the 01 series units at the following site but the site seems to be down right now so you may want to try it later.
You have to join the site to download the manual but it is free and this is a very good site for manuals and other info for the appliance repair DIYe