Whirlpool Dishwasher Lower Spray Arm - WPW10330588

Restore proper dishwasher spray coverage with this genuine Whirlpool Dishwasher Lower Spray Arm - WPW10330588. This lower wash arm directs water toward the bottom rack for improved cleaning.

WPW10330588 is a genuine OEM Whirlpool lower spray arm used when the original arm cracks, clogs, or no longer spins correctly. Replacing it helps restore better lower-rack cleaning performance.

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.

Compatible Model Examples: MDB4630AWB3, MDB4709AWB1, MDB7749SBB3. These are examples, not every compatible model.

Fitment / What To Verify: Verify the complete dishwasher model number, arm location, hub or support, water-feed connection and mounting style.

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): W10240183, W10240184, W10330588

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

Please note: Check the model diagram for any separate mounts, seals or retainers; the included components can differ by part number.