Product Description
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.
Equivalent Part Numbers: 2176941, 2183073, 4387490, 9791823
The Whirlpool WP4387490 sxs refrigerator defrost thermostat is a genuine OEM replacement component designed to restore proper operation in your appliance or equipment.
This part helps maintain reliable appliance performance and supports the overall function of the system it serves. If this part becomes worn, damaged, or stops operating correctly, the function it supports may become inconsistent or stop working altogether. Replacing a failed or worn component with the correct genuine OEM part can help restore proper operation and support consistent day-to-day performance.
Using genuine OEM Whirlpool parts ensures compatibility, reliability, and long-lasting performance. OEM components are built to the exact specifications of your equipment, protecting your investment and reducing the risk of costly breakdowns.