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KitchenAid
Dishwasher

Model # KUDB21S0 Official KitchenAid dishwasher

Here are the diagrams and repair parts for Official KitchenAid KUDB21S0 dishwasher, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 328 parts  |
Gasket 116202
#13

Fill and overfill diagram

Gasket

Part #116202

Replaced by #WP8531743

?
Manufacturer substitution
This part replaces 116202. Substitute parts can look different from the original.
BEST SELLER
$27.67
| 
18% OFF Phone Price : $33.67
In Stock
Adapter 110552
#4

Fill hose and cord kdc-61a diagram

Adapter

Part #110552

Replaced by #WPW10254672

?
Manufacturer substitution
This part replaces 110552. Substitute parts can look different from the original.
BEST SELLER
$37.70
| 
14% OFF Phone Price : $43.70
In Stock
Screw SD-17-41
#29

Frame and miscellaneous diagram

Screw

Part #SD-17-41

Replaced by #W11233072

?
Manufacturer substitution
This part replaces SD-17-41. Substitute parts can look different from the original.
$16.79
| 
11% OFF Phone Price : $18.79
In Stock
Screw SD-17-42
#28

Door and latch diagram

Screw

Part #SD-17-42

Replaced by #W11233072

?
Manufacturer substitution
This part replaces SD-17-42. Substitute parts can look different from the original.
$16.79
| 
11% OFF Phone Price : $18.79
In Stock
Screw SC-109-58
#2

Wash and drain pump diagram

Screw

Part #SC-109-58

Replaced by #W11233072

?
Manufacturer substitution
This part replaces SC-109-58. Substitute parts can look different from the original.
$16.79
| 
11% OFF Phone Price : $18.79
In Stock
Hose Clamp 240202-3
#37

Wash and drain pump diagram

Hose clamp

Part #240202-3

Replaced by #3363365

?
Manufacturer substitution
This part replaces 240202-3. Substitute parts can look different from the original.
This item is not returnable
$8.39
| 
11% OFF Phone Price : $9.39
In Stock
Switch 116270
#12

Fill and overfill diagram

Switch

Part #116270

Replaced by #W10207863

?
Manufacturer substitution
This part replaces 116270. Substitute parts can look different from the original.
$34.01
| 
15% OFF Phone Price : $40.01
In Stock
Dishwasher Receiver 240968
#17

Upper wash/rinse diagram

Dishwasher receiver

Part #240968

Replaced by #4171566

?
Manufacturer substitution
This part replaces 240968. Substitute parts can look different from the original.
This item is not returnable
$21.59
| 
22% OFF Phone Price : $27.59
In Stock
Inlet Valve 242905
#7

Fill and overfill diagram

Inlet valve

Part #242905

Replaced by #WP4171000

?
Manufacturer substitution
This part replaces 242905. Substitute parts can look different from the original.
$93.89
| 
6% OFF Phone Price : $99.89
In Stock
Roller 240683
#3

Lower rack diagram

Roller

Part #240683

Replaced by #WP4162322

?
Manufacturer substitution
This part replaces 240683. Substitute parts can look different from the original.
This item is not returnable
$4.02
| 
20% OFF Phone Price : $5.02
In Stock

Most common symptoms to help you fix your dishwashers

Choose a symptom to see related dishwasher repairs.

View all

Why won't my dishwasher fill?

Main causes: water supply problem, stuck overfill float, clogged water inlet valve screen, water inlet valve failure...

Read more

Why won't my dishwasher drain?

Main causes: clogged kitchen sink drain, clogged drain hose, drain check valve damaged, drain pump failure, control syst...

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Why does my dishwasher door drop open too fast?

Main causes: broken door spring, damaged or broken door hinge...

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Why can't I adjust the dishwasher rack height?

Main cause: damaged rack height adjuster...

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Why isn't my dishwasher getting dishes clean?

Main causes: improper loading, low water temperature, improper detergent dosage, detergent dispenser failure, spray arm ...

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Why won't my dishwasher start?

Main causes: light switch beside the sink turned off, lack of power, bad dishwasher door switch, control system failure,...

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Why don't my dishes get dry?

Main causes: not using rinse aid, rinse aid dispenser failure, broken heating element, malfunctioning vent, drying fan f...

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Why does my dishwasher stop mid-cycle?

Main causes: broken door latch, tripped circuit breaker, broken heating element, faulty vent fan, sensor failure, contro...

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Why is my dishwasher noisy?

Main causes: glass or popcorn kernel stuck in the chopper blade, drain line vibrating against the cabinet, debris in was...

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Most common repair guides to help fix your dishwashers

These step-by-step repair guides will help you safely fix what’s broken on your dishwasher.

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How to replace a dishwasher heating element

How to replace a dishwasher heating element

Dishes not drying as fast as they should? The dishwasher heating element could be on the fritz. Here's how to install a ...

Read more
Repair difficulty
Time required
45 minutes or less
How to replace a dishwasher high-limit thermostat

How to replace a dishwasher high-limit thermostat

Follow these steps to replace the high-limit thermostat in your dishwasher if prevents the heating element from heating....

Read more
Repair difficulty
Time required
30 minutes or less
How to replace a dishwasher diverter motor

How to replace a dishwasher diverter motor

Upper spray arms not getting water? The diverter motor could be broken. Use this guide to replace it....

Read more
Repair difficulty
Time required
30 minutes or less

Effective articles & videos to help repair your dishwashers

Use the advice and tips in these articles and videos to get the most out of your dishwasher.

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5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home....

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier....

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Top questions about Sears and Sears PartsDirect

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