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Dispenser Cap

Part Number: AP3778964
MFG Part Number: 8558307
Made by: Whirlpool
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$21.50 $5.42

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Questions & Answers

36 Questions & Answers


Color: Blue. Dishwasher rinse aid (jet dry) dispenser cap.

Genuine Whirlpool part. Whirlpool brands include Whirlpool, Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and others. See all items in Dishwasher Dispenser.
Whirlpool also makes various appliance models for Sears / Kenmore.

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Cross Reference Information

Part Number 8558307 (AP3778964) replaces 8539095, 1060792, 8193984, 8558310, AH973803, EA973803, PS973803.

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Repair Time Estimate

Less than 15 minutes 

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Repair Video

How to Replace Dispenser Cap #8558307

Step by step instructions on how to replace a Dispenser Cap #8558307 for Dishwasher made by Whirlpool, Roper, Kenmore, Estate. Note: This video is intended to give you the general idea of the part replacement procedure. Your appliance may differ depending on the manufacturer and model.


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Most Interesting

I see this is not a unique situation- the cap falling off the rinse-aid dispenser and melting. Is there a cap for my model or do I have to purchase the entire assembly? Thanks.

Marylou for Model Number WDT790SAYB0


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For whatever reason, the gasket on the dispenser cap is stretched out and no longer keeps the Jet Dry in the reservoir - I have to fill it with every wash. Can I get the washer/gasket or do I need to buy a new dispenser cap. If I buy the dispenser cap, will it have a gasket? The dispenser cap fits well enough, but without the little round gasket, doesn't hold a seal. Thanks

Sue R. for Model Number Whirlpool dishwasher WDTR710PAYWS


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I need a Rinse Aid Dispenser Cap replacement. Which one is appropriate ? I think its MFG Part # 8558307.

Richard for Model Number KitchenAid Dishwasher KUDM01TJBT0


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Latest Questions

The rinse agent will not dispense. Will replacing the cap fix this?

Raimond V for Model Number DU1300XTVQ1


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Am missing the rinse-aid dispenser cap for this Whirlpool dishwasher. When I locate the one I THINK is correct - it will not match when I input the model number. Help, Please??? What should I order?? Thanks very much. B Patton

Betty for Model Number DU915PWPSO


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I need the jet dry dispenser cap. When I spoke with Kitchenaid, they told me the part is available, but they would not give me a part number.

Randy S for Model Number kudc10fxss4


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