Whirlpool Dishwasher Lower Spray Arm - WP99001788

Whirlpool Dishwasher Lower Spray Arm - WP99001788

Restore proper dishwasher spray coverage with this genuine Whirlpool Dishwasher Lower Spray Arm - WP99001788. This lower spray arm rotates during the wash cycle and sends water across the lower rack to help clean dishes more evenly.

WP99001788 is a genuine OEM Whirlpool lower spray arm used when the original arm cracks, clogs, or no longer spins correctly. Replacing it helps restore lower-rack spray coverage and improve wash results.

Compatibility: Whirlpool, KitchenAid, Maytag, Jenn-Air, Amana, Roper, Estate, Admiral, Magic Chef, and select Kenmore dishwashers.

Fits These Brands / Families: Fits select Whirlpool, KitchenAid, Maytag, Jenn-Air, Amana, Roper, Estate, Admiral, Magic Chef, and select Kenmore dishwashers.

Please confirm fitment with your appliance model number before ordering.

Is it time to replace?

• Common Symptoms: Poor cleaning results, weak spray action, or dishes that come out with leftover residue.
• Visible/Sensory Cues: Cracked spray arm body, clogged spray holes, worn hub area, or an arm that no longer spins freely.

Pro Tip: Inspect the filter and feed area for debris so restricted water flow does not affect the new spray arm.

Technical Specifications

Legacy part number(s)/code(s): 99001427, 99001747, 99001788

Please note: These legacy parts have been replaced by this item. They may not look exactly the same, but the manufacturer of these appliances has assured us that they will function properly.

If you have questions, please message us before ordering so we can address your concerns. Please review our Return Policy before purchasing.