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Whirlpool
Dishwasher

Model # DU9400XY2 Official Whirlpool dishwasher

Here are the diagrams and repair parts for Official Whirlpool DU9400XY2 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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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 183 parts  |
Gasket 3368994
#10

Tub assembly diagram

Gasket

Part #3368994

Replaced by #WPW10509257

?
Manufacturer substitution
This part replaces 3368994. Substitute parts can look different from the original.
BEST SELLER
$40.49 | 
13% OFF Phone Price : $46.49
In Stock
Flexrow 3370561
#26

Dishrack diagram

Flexrow

Part #3370561

Replaced by #W10728160

?
Manufacturer substitution
This part replaces 3370561. Substitute parts can look different from the original.
BEST SELLER
$46.03 | 
12% OFF Phone Price : $52.03
In Stock
Spring 300106
#10

Inner door diagram

Spring

Part #300106

Replaced by #WP8066018

?
Manufacturer substitution
This part replaces 300106. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.46 | 
18% OFF Phone Price : $5.46
In Stock
Cap 3369512
#13

Inner door diagram

Cap

Part #3369512

Replaced by #WP3378134

?
Manufacturer substitution
This part replaces 3369512. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$6.60 | 
13% OFF Phone Price : $7.60
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Seal 3369155
#14

Inner door diagram

Seal

Part #3369155

Replaced by #WP3378134

?
Manufacturer substitution
This part replaces 3369155. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$6.60 | 
13% OFF Phone Price : $7.60
In Stock
Screw 301077
#13

Dishrack diagram

Screw

Part #301077

Replaced by #WP9741232

?
Manufacturer substitution
This part replaces 301077. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.37 | 
19% OFF Phone Price : $5.37
In Stock
Dishwasher Screw 9741232
#3

Pump and motor diagram

Dishwasher screw

Part #9741232

Replaced by #WP9741232

?
Manufacturer substitution
This part replaces 9741232. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.37 | 
19% OFF Phone Price : $5.37
In Stock
Dishwasher Pump Outlet Seal 302711
#13

Pump and motor diagram

Dishwasher pump outlet seal

Part #302711

Replaced by #WP302711

?
Manufacturer substitution
This part replaces 302711. Substitute parts can look different from the original.
BEST SELLER
$20.82 | 
22% OFF Phone Price : $26.82
In Stock
Dishwasher Circulation Pump Gasket (replaces 302371, 661633, 8057506) 717000
#16

Pump and motor diagram

Dishwasher circulation pump gasket (replaces 302371, 661633, 8057506)

Part #717000

This item is not returnable
$30.11 | 
17% OFF Phone Price : $36.11
In Stock
Check Valve 3369482
#15

Pump and motor diagram

Check valve

Part #3369482

Replaced by #675238

?
Manufacturer substitution
This part replaces 3369482. Substitute parts can look different from the original.
$32.85 | 
15% OFF Phone Price : $38.85
In Stock

Most common symptoms to help you fix your dishwashers

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

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Why won't my dishwasher fill?

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

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

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

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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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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 can't I adjust the dishwasher rack height?

Main cause: damaged rack height adjuster…

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Why is my dishwasher leaking?

Main causes: damaged or stuck spray arm, leaking door seal, damaged door hinge, leaky heating element water seal, cracke…

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Repair difficulty
Time required
 30 minutes or less
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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your dishwashers

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