POOR WASH PERFORMANCE FROM REDUCED OR MISDIRECTED WATER FLOW TO THE SPRAY ARMS
Whirlpool Dishwasher pump cover / sump cap cover WPW10455272, Fixes Poor wash performance from reduced or misdirected water flow to the spray arms
Genuine Whirlpool pump outlet cover that covers the dishwasher sump/pump area, helps protect the pump from debris, and helps seal and direct water flow through the sump and wash system.
Part WPW10455272Replaces W10500281, W10455272, W10315329Whirlpool
Guaranteed to Fit — or your money back.
Confirm your full appliance model number before ordering.
Confirm your full appliance model number before ordering.
Is This the Right Part?
Part NumberWPW10455272
ReplacesW10500281, W10455272, W10315329
ManufacturerWhirlpool
Appliance TypeDishwasher
Part TypeDishwasher pump cover / sump cap cover
✅ Cross Reference Information
Current Part NumberWPW10455272
ReplacesW10500281, W10455272, W10315329
Common Symptoms
- Dishes remain poorly cleaned despite normal filling and draining.
- Weak or absent water flow from one or more spray arms.
- Water leakage near the sump, diverter, or bottom of the dishwasher if the cover is cracked, warped, improperly seated, or missing its seal.
- Possible abnormal wash-water behavior caused by a damaged pump outlet cover.
Check Before Replacing
- Disconnect electrical power before inspecting the sump or pump-cover area.
- Inspect the cover for visible cracks, warping, distortion, missing sections, or an improperly seated seal.
- Check for debris around the sump and pump-outlet area without forcing or damaging components.
- After confirming the dishwasher model, compare the installed cover and seal with the replacement part before ordering.
- If wash performance is poor, verify that the spray arms are unobstructed and that the symptom is not caused by a separate circulation-pump, diverter, filter, or spray-arm problem.
Pro Tip
The cover is supplied with its seal; if the seal is damaged, replace the cover-and-seal assembly rather than assuming the gasket is available separately.
Part Details
Part NumberWPW10455272
Part TypeDishwasher pump cover / sump cap cover
ManufacturerWhirlpool
Appliance TypeDishwasher
Primary FunctionCovers and seals the dishwasher sump/pump outlet area, helping protect the pump from debris and direct wash water to the spray-arm circuit through the diverter.
Installation Notes
- Disconnect electrical power before beginning the repair and follow the model-specific service instructions.
- Access to the sump/pump-cover area may require removal of dishwasher interior components; use the procedure for the exact dishwasher model.
- Inspect the mating surfaces and seal location before installing the replacement.
- Seat the cover and included seal evenly and confirm that no portion of the seal is pinched or displaced.
- Reassemble removed components and check for leaks and proper spray-arm water flow during a test cycle.
Verified Compatible Models
7WDT950SAYM2, KDFE454CSS0, WDF775SAYB2, WDF775SAYM2, WDF775SAYW2, WDF780SLYB2, WDF780SLYB3, WDF780SLYM2, WDF780SLYM3, WDF780SLYW2, WDF780SLYW3, WDT910SAYE2, WDT910SAYH2, WDT910SAYM2, WDT910SSYB2
Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.
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