Online Sale!

100% Guaranteed Genuine Parts

WP4387490 Whirlpool Refrigerator Bi-Metal Defrost Thermostat

This Refrigerator Defrost Thermostat is a safety device that clips onto the evaporator in the freezer. The thermostat turns off the defrost heater in case it gets too warm in the freezer section. If your refrigerator does not defrost, replacing the thermostat may alleviate this issue. To access the part, open the freezer door and remove the shelves, mounting brackets (if they release), and the ice bucket. After you remove the back panel, the defrost thermostat is mounted to the end of the evaporator. Replacing the element will require basic hand tools, some disassembly of the refrigerator and novice repair experience. You must unplug the appliance or shut off the house circuit breaker for the appliance before installing this part.

Part Specification
• This product is a Factory Certified Part. These three words represent quality parts and accessories designed specifically for your appliance. Time tested engineering that meets our strict quality specifications
• This product is a replacement part
• Package contains (1) Refrigerator Defrost Thermostat
• Tools Needed: Multi screwdriver, wire splicing tool


Weight : 0.107900 lbs
Dimension : 4.803100 x 2.834600 x 1.102300
Ship to home
In stock and ready to ship
Store Pickup In stock and ready for pickup!
Ok Edit
Enter a valid ZIP code
In stock
Out of stock
Special Price $18.07 Regular Price $20.08 10% off

Compatible Brands

Compatible with Compatible with Compatible with Compatible with Compatible with Compatible with Compatible with Compatible with Compatible with Compatible with

About this product

This Refrigerator Defrost Thermostat is a safety device that clips onto the evaporator in the freezer. The thermostat turns off the defrost heater in case it gets too warm in the freezer section. If your refrigerator does not defrost, replacing the thermostat may alleviate this issue. To access the part, open the freezer door and remove the shelves, mounting brackets (if they release), and the ice bucket. After you remove the back panel, the defrost thermostat is mounted to the end of the evaporator. Replacing the element will require basic hand tools, some disassembly of the refrigerator and novice repair experience. You must unplug the appliance or shut off the house circuit breaker for the appliance before installing this part.

Part Specification
• This product is a Factory Certified Part. These three words represent quality parts and accessories designed specifically for your appliance. Time tested engineering that meets our strict quality specifications
• This product is a replacement part
• Package contains (1) Refrigerator Defrost Thermostat
• Tools Needed: Multi screwdriver, wire splicing tool


Weight : 0.107900 lbs
Dimension : 4.803100 x 2.834600 x 1.102300

The following parts are replaced by this product

  1. 4387490
  2. 2176941
  3. 9791823
No more associated models for this part.
There are no associated instructions for this part.
Write Your Own Review
You're reviewing:WP4387490 Whirlpool Refrigerator BI-Metal Defrost Thermostat
Your Rating

Image size should not exceed 5 MB. File format must be JPG or PNG.