Product Description
This Refrigerator Defrost Thermostat is a safety device that clips onto the evaporator in the freezer section of the appliance. The Defrost Thermostat turns off the defrost heater in case it gets too warm in the freezer section. This part opens at 50-deg. F and closes at 25-deg. F. If your refrigerator does not defrost, both the thermostat and heater can be tested with a multimeter (item 964740) to determine which part is at fault. Replacing the thermostat will require basic hand tools and some disassembly of the refrigerator. Previous repair experience will be helpful but is not necessary. You must unplug the refrigerator or shut off the house circuit breaker for the appliance before installing this part. Recommended Item: You will need a set of Wire Connectors (item 3288795) to complete this repair.
Equivalent Part Numbers: 56496, 56841, 56939, 57124, 310631, 311163, 311642, 483084, 942871, 942872, 1100435, 1100436, 1108164, 1108165, 1108199, 1108574, 1108575, 1110545, 1110546, 1110762, 1110763, 1113044, 1113405, 1115456, 1115457, 1118688, 1118690, 1118691, 1118824, 1118826, 1127661, 1127753, 1127754, 1127771, 2000528, 2151215, 2154544, 4387499, 99989720, R0950190, Y0056496, Y0056841, Y0056939, Y0057124, Y0310631, Y0311163, Y0311642
The Whirlpool WP4387499 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.
