Whirlpool Dishwasher Spray Arm - WPW10320510

Whirlpool Dishwasher Lower Spray Arm Assembly - 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.

Compatibility: Whirlpool, KitchenAid, Maytag, Jenn-Air, Amana, Estate, Roper, Admiral, and select Kenmore dishwasher platforms

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

Please note: These legacy parts have been replaced by this item.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.