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Customer Questions and Answers for Dishwasher Lower Wash Arm Support Cap by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18044616
Manufacturer Part Number: WPW10077899

The lower wash arm support cap secures and stabilizes the lower spray arm while allowing it to rotate freely during wash cycles. Positioned at the center of the dishwasher floor beneath the lower dish rack, it requires replacement when the wash arm wobbles, doesn't rotate, or when dishes in the lower rack remain dirty.

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$51.62

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Questions & Answers

For Whirlpool Dishwasher Lower Wash Arm Support Cap (Part Number: OEM18044616)

1 Answer

Vince,

The issue would most likely be caused by the spray arm not being fully tight to the nut that goes through it. If it is then either the nut is damaged or the spray arm is the issue.

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1 Answer

Hello Jack. Use pliers and hold the center spinner as you unscrew the spray arm to remove it. Once removed, you will lift up on the locking tab at the bottom of the manifold and twist to the right the cap arm to remove it from the unit. Now you can access and replace the seal. Reverse to put back together.

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1 Answer

Hello Kristi! According to your model number the lower spray arm manifold WPW10077899 is the correct replacement. If you are needing the upper spray arm manifold for your unit you should order part number WPW10323424. Thanks!

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