Whirlpool Dishwasher High Limit Thermostat WP661566

Whirlpool genuine OEM high-limit thermostat that mounts to the bottom of the dishwasher tub and monitors water temperature.

Is This the Right Part?

Common Symptoms

• Dishwasher does not heat water properly
• Dishwasher does not dry dishes properly
• Dishwasher may not start or complete a cycle when the thermostat is open

Check Before Replacing

• Disconnect electrical power before servicing.
• Inspect the thermostat and terminals for visible damage or loose connections.
• Verify the dishwasher model number against a parts lookup before ordering.
• A qualified technician can test thermostat continuity according to the appliance service documentation.

Pro Tip

Part Details

Key Features

• Genuine Whirlpool OEM part
• High-limit thermostat
• Dishwasher application
• 1/4-inch terminals
• Mounts to the bottom of the dishwasher tub
• Replaces documented Whirlpool numbers including 661566 and W10339474

Installation Notes

• Disconnect electrical power at the plug or circuit breaker before installation.
• Wear protective gloves when accessing the dishwasher underside or tub area.
• Follow the appliance-specific service instructions for access and terminal placement.

Verified Compatible Models

7DU910PFGB0, 2213804N710, 6651571593, 6651671191, 6651691190, 6651765590, 66517842401, DP920PFGQ2, DP920PFGQ3, DP920PFGQ4, DP920PFGY2, DP920PFGY3, DP920PFGY4, DP940PWKM0, DP940PWKM1, DP940PWKQ1, DP940PWPQ0, DP940PWPQ1, DP8500XXN0, DU900PWKQ0, DU943PWKQ0, DU1000CGB1, DU1000CGB2, DU1000CGQ1, DU1000CGQ2, DU1000CGT2, DU1000CGZ1, DU1020XTLB0, DU1020XTLQ0, DU1048XTPQ0, DU1048XTPS0, DU1050XTPB0, DU1050XTPB1, DU1050XTPB3, DU1050XTPQ0, DU1050XTPQ1, DU1050XTPQ3, DU1050XTPS0, DU1050XTPS1, DU1050XTPS3, DU1050XTPT0, DU1050XTPT1, DU1050XTPT3, DU1055XTPB0, DU1055XTPQ0, DU1055XTPS0, DU1055XTPT0, DU1100XTPB0, DU1100XTPB1, DU1100XTPB3, DU1100XTPQ0, DU1100XTPQ1, DU1100XTPQ3, DU1100XTPS0, DU1100XTPS1, DU1100XTPS3, DU1100XTPT0, DU1100XTPT1, DU1100XTPT3, DU8700XX1, DU8900XY0, DU9420XX0, DU9720XX0, GDP8500XXN1, GU940SCGB2, GU940SCGQ2, GU980SCGB2, GU980SCGB3, GU980SCGQ2, GU980SCGQ3, GU1200XTKB0, IUD3100BW4, KUDH23HY0, KUDI24SEBL1, KUDI230BAL0, KUDJ23HY0, KUDJ23HYWH1, KUDJ230YWH0, KUDJ230YWH1, KUDJ230YWH2, KUDP230Y0, KUDR01TJBL0, KUDS01DJSS0, KUDS01FLSS1, KUDS01FLSS2, KUDS01FLSS6, KUDS01IJBS0, KUDS24SEBL1, KUDS24SEWH1, KUDS24SEWH2, KUDS25SHBL1, KUDS25SHWH1, WDF320PADW1, 66517824001, 665.14319N411, 665.15798790, 665.16625692, DU1010XTXT5, IUD6100BB0, JDB3200AWW1, KUDC25CHSS0, KUDI01ILWH6, KUDJ01TJWH0, KUDS01DLBL2, KUDS40FVWH0, KUDU02FRBL2, KUDW02FRWH3, MDC4809AWW3, WDT720PADB2, 66517732K900

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