This spray arm (part number WPW10491331) is for dishwashers. Spray arm WPW10491331 rotates and sprays water to clean the dishes inside the dishwasher tub. Wear work gloves to protect your hands during this repair.

Restore proper wash performance with the Whirlpool Original WPW10491331 Lower Spray Arm, a NEW OEM genuine replacement part for select Whirlpool dishwashers. This lower spray arm (WPW10491331) rotates and sprays water throughout the dishwasher tub to help clean dishes effectively during the wash cycle.

If your dishwasher isn’t cleaning well, leaves residue, or you notice poor spray coverage, replacing a worn or clogged lower spray arm can help bring back normal washing performance. This part is commonly referenced as WPW10491331 and replaces W10491331 (verify compatibility using your dishwasher model number and existing part number before ordering).

Part Number: WPW10491331
Replaces: W10491331
Location: Lower spray arm (bottom of dishwasher tub)
Condition: New OEM genuine part

Safety note: Wear work gloves to protect your hands during installation.

• Genuine OEM Whirlpool Part: WPW10491331 lower spray arm for dependable fit and performance.
• Replaces W10491331: Direct replacement reference for W10491331 (model dependent—confirm fit).
• Restores Cleaning Action: Rotates and sprays water to improve wash coverage inside the dishwasher tub.
• Fixes Poor Wash Symptoms: Helps address weak spray, incomplete cleaning, and uneven water distribution.
• Simple Repair Upgrade: Replacing a worn or clogged lower spray arm can improve daily dishwasher performance.
• Install Tip: Wear work gloves during repair for hand protection.