Product review (5 stars): GE WR50X10068 Defrost Thermostat for GE Refrigerators
This WR50X10068 [L140-30] defrost thermostat was an exact replacement for the old one in our GE refrigerators freezer section. Replacing it wasn't too difficult once the rear panel was removed to access the coil. The two leads on the new thermostat are long enough to easily splice onto the existing wires of the old thermostat. This is a genuine OEM GE part and was reasonably priced here on Amazon.