Whirlpool Refrigerator Defrost Heater Assembly WPW10316428

Genuine Whirlpool OEM defrost heater assembly that melts frost from the evaporator coils during the refrigerator's automatic defrost cycle.

Is This the Right Part?

Common Symptoms

• Freezer evaporator coils frozen over
• Refrigerator not defrosting
• Excessive frost or ice buildup
• Refrigerator running constantly
• Freezer running continuously
• Freezer not freezing properly

Check Before Replacing

• Inspect for excessive frost or ice covering the evaporator area.
• With power disconnected and the heater isolated according to the appliance service procedure, test the heater for electrical continuity with a multimeter.
• Confirm the appliance model number before ordering because compatibility is model-specific.

Pro Tip

Part Details

Key Features

• Genuine Whirlpool OEM part
• Defrost heater assembly
• Part number WPW10316428
• Replaces W10316428

Installation Notes

• Disconnect electrical power before servicing the refrigerator.
• Safely protect or remove perishable food while the appliance is powered off.
• Wear work gloves when accessing the evaporator and heater area.
• Verify the complete appliance model number before installation.

Verified Compatible Models

10632242101, 10632243101, 10632249101, 10632942101, 10632943101, 10632949101, 10660212410, 10660213410, 10660214410, 10660219410, 10661102110, 10661102111, 10661103110, 10661103111, 10661104110, A1RXNGFYB00, A1RXNGFYS00, A1RXNGFYW00, A9RXNGFYB00, A9RXNGFYS00, A9RXNGFYW00, ART308FFDB00, ART308FFDB01, MZF34X20DW03, WRT108TFYB00, WRT138TFYW00, WRT311FZDM01, WRT311FZDW, WRT318FZDB, WRT318FZDM, WRT318FZDM00, WRT318FZDW, WSZ57L18DH00, WSZ57L18DM00, WSZ57L18DM01, WSZ57L18DM03, WZF34X16DW, WZF34X16DW00, WZF34X16DW01, WZF34X16DW02, WZF34X16DW04, WZF34X16DW06, WZF34X16DW07, WZF34X18DW00, WZF34X18DW01, WZF34X18DW02, WZF34X18DW03, WZF34X18DW04, WZF34X20DW00, WZF34X20DW01, WZF34X20DW02, WZF56R16DW00, WZF56R16DW01, WZF56R16DW04, WZF56R16DW06, WZF56R16DW07, WZF57R16FW00, WZF57R16FW04, WZF79R18DM00, WZF79R20DW00, WZF79R20DW03, WZF79R20DW04, WRT138TFYB00, WRT108TFYW00, ART318FFDB02, ART318FFDB03, ART318FFDW00, ART318FFDW01, ART318FFDW02, ART318FFDW03, M1TXEGMYW00, MRT118FFFM00, MRT118FFFM01, MRT118FFFM04, MRT311FFFZ00, MZF34X16DW00, MZF34X16DW01, MZF34X16DW04, WRT108FZDB05, WZF57R16FW06, WZF57R16FW07

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