This high-quality cap is supplied by the original equipment manufacturer for use with Whirlpool dishwashers. It is an identical replacement for a damaged or a faulty rinse aid cap that was installed on a new unit. The purpose of this component is to keep the rinse solution in the container. Make sure to check the owners manual and the diagrams of your model for the exact location and the correct application of this part. Keep in mind this high-quality cap is made of durable plastic and is sold individually. Note, the part comes with a pre-installed rubber gasket to help ensure a tight seal.
Dishwasher Rinse Aid Cap WP8558307
OEM part for: Whirlpool
Part Number: WP8558307
$27.56
In Stock
Ships within 1 business day 
Compatibility
This Dishwasher Rinse Aid Cap will fit the following 1206 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Displaying 20 of 1206 matching models.
Whirlpool
Show More Compatible Models1206 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- Crosley
- Estate
- Inglis
- Whirlpool
This item works with the following types of products:
- Dishwasher
This part replaces obsolete part #: 8558310, 8558307
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Replacement part was a success.
The old cap had fallen off into the bottom of my dishwasher and was partially melted. The new replacement cap fit perfect and tight, so it won’t happen again.
The customer service gal helped me find the part to order and was a delightful person to work with.
The reason I gave it 4 stars was because it was pricey.
Guest -
May 25, 2021
Verified Purchase
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