Whirlpool Range Base Rail Assembly W11818353
Whirlpool Range Base Rail Assembly W11818353

Whirlpool OEM Appliance Part W11661859, Replaces W10591540 Adapter — Genuine Replacement

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FINE FOOD PARTICLES OR DIRTY WATER REMAIN IN THE DISHWASHER BECAUSE THE INTERNAL FLAPPER VALVE NO LONGER SEALS

Whirlpool Corporation Dishwasher Drain chop adapter assembly W11661859, Fixes Fine food particles or dirty water remain in the dishwasher because the internal flapper valve no longer seals

Genuine Whirlpool dishwasher drain adapter assembly that connects the sump outlet to the drain hose and includes an internal flapper valve.

Part W11661859Replaces W10591540Whirlpool Corporation
Guaranteed to Fit — or your money back.
Confirm your full appliance model number before ordering.

Is This the Right Part?

Part NumberW11661859
ReplacesW10591540
ManufacturerWhirlpool Corporation
Appliance TypeDishwasher
Part TypeDrain chop adapter assembly

✅ Cross Reference Information

Current Part NumberW11661859
ReplacesW10591540

Common Symptoms

  • Dishwasher will not drain properly
  • Fine food particles or dirty water remain on dishes
  • Residue or debris may recirculate when the flapper valve is warped or missing
  • Cracked or leaking drain adapter assembly

Check Before Replacing

  • Inspect the adapter for cracks or leakage.
  • Inspect the internal rubber flapper valve for warping, detachment, or failure to close.
  • If the dishwasher has drainage or recirculation symptoms, verify that the flapper is present and seals before replacing other components.

Pro Tip

Compare the old adapter’s internal rubber flapper with the replacement; a warped, detached, or missing flapper can allow dirty water or debris to recirculate.

Part Details

Part NumberW11661859
Part TypeDrain chop adapter assembly
ManufacturerWhirlpool Corporation
Appliance TypeDishwasher
Primary FunctionConnects the dishwasher sump outlet to the drain hose and provides a one-way drain check function through its internal flapper valve.

Installation Notes

  • Disconnect electrical power before servicing the dishwasher.
  • Remove standing water safely before accessing the sump area.
  • The adapter is a dishwasher sump-area component; reinstall the flapper and adapter so the check-valve function is preserved.

Verified Compatible Models

MDB4949SDE0, MDB4949SDE1, MDB4949SDE2, MDB4949SDE3, MDB4949SDH0, MDB4949SDH1, MDB4949SDH2, MDB4949SDH3, MDB4949SDM0, MDB4949SDM1, MDB4949SDM2, MDB4949SDM3, MDB4949SDZ0, MDB4949SHB0, MDB4949SHB1, MDB4949SHW0, MDB4949SHW1, MDB4949SHZ0, MDB4949SHZ1, MDB5969SDH0, MDB5969SDH2, MDB5969SDM0, MDB5969SDM1, MDB5969SDM2, MDB6949SDH0, MDB7949SDE2, MDB7949SDM1, MDB7949SDM2, MDB7959SHZ1, MDB7979SHZ1, MDB8959SFE1, MDB8959SFE3, MDB8969SDE0, MDB8969SDE2, MDB8969SDH1, MDB8969SDM0, MDB8969SDM2, MDB8979SEZ1, MDB8989SHZ0

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.

✅Compatibility & Cross Reference

W10591540

MDB4949SDE0, MDB4949SDE1, MDB4949SDE2, MDB4949SDE3, MDB4949SDH0, MDB4949SDH1, MDB4949SDH2, MDB4949SDH3, MDB4949SDM0, MDB4949SDM1, MDB4949SDM2, MDB4949SDM3, MDB4949SDZ0, MDB4949SHB0, MDB4949SHB1, MDB4949SHW0, MDB4949SHW1, MDB4949SHZ0, MDB4949SHZ1, MDB5969SDH0, MDB5969SDH2, MDB5969SDM0, MDB5969SDM1, MDB5969SDM2, MDB6949SDH0, MDB7949SDE2, MDB7949SDM1, MDB7949SDM2, MDB7959SHZ1, MDB7979SHZ1, MDB8959SFE1, MDB8959SFE3, MDB8969SDE0, MDB8969SDE2, MDB8969SDH1, MDB8969SDM0, MDB8969SDM2, MDB8979SEZ1, MDB8989SHZ0

W11661859, Whirlpool Corporation, Drain chop adapter assembly, Dishwasher, W10591540, MDB4949SDE0, MDB4949SDE1, MDB4949SDE2, MDB4949SDE3, MDB4949SDH0, MDB4949SDH1, MDB4949SDH2, MDB4949SDH3, MDB4949SDM0, MDB4949SDM1, MDB4949SDM2, MDB4949SDM3, MDB4949SDZ0, MDB4949SHB0, MDB4949SHB1, MDB4949SHW0, MDB4949SHW1, MDB4949SHZ0, MDB4949SHZ1, MDB5969SDH0

Not sure about your model number? Call 1-877-899-7278 and we’ll help you confirm. All brand names are the property of their respective owners and are used for compatibility reference only.

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Kitchener, Ontario N2E 1W8
Phone
1-877-899-7278
Hours
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