Westinghouse Freezer Defrost Timer 6Hour/25Mins with Cam - Part # 4055727566Westinghouse No Frost Freezer Defrost Timer. Part No. 4055727566, Spec # TQ 2001 21. Replaces Part Nos. 1407843, RF096C. The part has 1415435 as the part number written on the part itself but that actual part number does not include the cam. The 1415435 timer without the cam is listed here. Invensys defrost timer which switches for 25 minutes every 6 hours and has a two lobe cam on the adjustment knob. Contacts rated 5amp, 240Volt, 1 3HP. Motor