Whirlpool Dishwasher Lower Spray Arm - W11101428

Restore lower-rack wash coverage and cleaning performance with this genuine OEM Whirlpool Dishwasher Lower Spray Arm - W11101428. This lower spray arm rotates and distributes water across the lower rack to help clean dishes evenly during the wash cycle.

W11101428 is a genuine OEM Whirlpool lower spray arm used when the original arm is cracked, clogged, or no longer spinning and spraying correctly. This is a lower spray arm for select Whirlpool-built dishwashers.

Compatibility: Whirlpool-built dishwasher platforms that call for this exact lower spray arm.

This part commonly replaces previous part numbers including W10406822, WPW10406822, W10665718, and W10858786.

Fits These Brands / Families: Whirlpool-built dishwasher platforms that use this exact lower spray arm. Verify the lower-rack location and center-mount style before ordering.

Compatible Model Examples: JDB9000CWB1, JDB9200CWP1. 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 bottom-rack cleaning, weak spray action, or dishes coming out dirty after the cycle.
• Visible/Sensory Cues: Cracked arm body, clogged spray holes, or an arm that no longer rotates freely.

Pro Tip: Confirm the spray-arm location before ordering. Many Whirlpool-built dishwashers use different upper and lower arms that are not interchangeable.

Technical Specifications

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