Whirlpool Dishwasher Sump Assembly WPW10455268 – Fix a Dishwasher That Won’t Clean, Drain, or Fill Properly

When the sump assembly fails, your dishwasher loses the ability to circulate water effectively — resulting in dishes that come out dirty, standing water at the bottom of the tub, or a machine that won’t complete its cycle. The WPW10455268 is the genuine OEM Whirlpool replacement that restores full water circulation, drainage, and cleaning performance.

✓ Symptoms This Part Fixes

• Dishes not getting clean — food residue remaining after a full cycle
• Standing water at the bottom of the dishwasher after the cycle
• Dishwasher not draining completely
• Weak or no water spray from the wash arms
• Unusual grinding or humming noise during the wash cycle
• Dishwasher stops mid-cycle or won’t start a wash

✓ Part Details

• OEM Part Number: WPW10455268
• Type: Dishwasher Sump Assembly
• Brand: Whirlpool (Genuine OEM)
• Cross-References: W10300747, W10455268
• Fits: Whirlpool, Kenmore, KitchenAid, Jenn-Air, Amana dishwashers
• Condition: New — direct factory replacement, no modifications required

✓ Installation Notes

• Skill Level: Intermediate — basic appliance repair experience recommended
• Disconnect power and turn off the water supply before starting
• The sump assembly is located at the bottom of the dishwasher tub — the lower spray arm and filter assembly must be removed first
• Photograph all hose and wiring connections before disconnecting
• Ensure all clamps and seals are properly seated on reassembly to prevent leaks
• Run a short cycle and check for leaks before returning to full service

✓ Compatible Models

Fits select Whirlpool, Kenmore (665 series), KitchenAid, Jenn-Air, and Amana dishwasher models including: 7WDT770PAYM2, 7WDT790SAYM0, 7WDT950SAYM0, ADB1500ADB1, ADB1700ADS1, IUD7500BS0, IUD8010DS0, JDB8000AWB1, JDB8500AWF1, JDB8700AWS1, JDB9000CWS1, KDFE104DBL0, KDFE204ESS0, KDTE104ESS0, KDTE204EBL0, KDTE304DSS0, KUDE20FBSS0, KUDE48FXSS6, WDF560SAFB0, WDF730PAYB0, WDF750SAYB0, WDF760SADB0, WDT720PADB0, WDT790SAYB0, WDT910SAYE0, WDT920SADE0, WDTA50SAHB0, and many more Kenmore 665 series models. Verify your model number before ordering or contact us to confirm compatibility.

✓ Frequently Asked Questions

How do I know if the sump assembly is the problem? If your dishwasher has standing water after a cycle, weak spray arm pressure, or dishes that aren’t getting clean despite a clear filter, the sump assembly is the most likely cause. Check the filter and drain hose first to rule out blockages.

Is this a genuine OEM part? Yes — WPW10455268 is a genuine Whirlpool OEM part. It replaces earlier part numbers W10300747 and W10455268.

Will this fit my Kenmore dishwasher? Yes — this part fits a wide range of Kenmore 665 series dishwashers built on the Whirlpool platform. Verify your full model number before ordering.

✓ Model-Specific Repair Pages