Wr51x10055 defrost heater replaces Part Numbers: AP3183311, 914088, AH303781, EA303781, PS303781, WR51X10030
The thermostat is a L140-33*F which means it opens at 140 degrees and closes at 90 degrees F Replace part number : WR50X10068,725 watt rating and high heat capability
High quality ensured
Non original aftermarket part