Whirlpool Dishwasher Lower Spray Arm - WPW10320510

Restore proper lower-rack wash coverage with this genuine OEM Whirlpool Dishwasher Lower Spray Arm Assembly - WPW10320510. This lower spray arm assembly rotates during the wash cycle and directs water across the lower rack for more even cleaning.

WPW10320510 is a genuine OEM Whirlpool dishwasher lower spray arm assembly used when the original arm is cracked, clogged, or no longer rotates correctly. Replacing it can improve spray distribution and lower-rack cleaning performance.

Fits These Brands / Families: Whirlpool, KitchenAid, Maytag, Jenn-Air, Amana, Estate, Roper, Admiral, and select Kenmore dishwasher platforms

Compatible Model Examples: KUDB03CTBL2, KUDC01TMBL0, KUDI01DLBL0. These are examples, not every compatible model.

Fitment / What To Verify: Verify the original spray-arm location and hub style before ordering. Lower wash-arm assemblies are not interchangeable with center, upper, or third-level spray-arm designs.

This part commonly replaces previous part numbers including W10320510, W10077965, 8572307, and 8268300.

Please confirm fitment with your appliance model number before ordering.

Is it time to replace?

• Common Symptoms: Poor lower-rack cleaning, weak spray action, or dishes that remain dirty after the cycle.
• Visible/Sensory Cues: Cracked arm body, blocked spray holes, worn hub, or an assembly that no longer rotates smoothly.

Pro Tip: Inspect the lower-arm support and feed area for debris or damage during the repair so the new spray arm receives proper water flow.

Technical Specifications

Legacy part number(s)/code(s): W10320510, 8268300, 8572307, W10077965

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.