This Whirlpool Defrost Timer For Refrigerator is compatible with Admiral, Amana, Caloric, Crosley, Hardwick, Jenn Air, Kenmore, Kitchen Aid, Magic Chef, Maytag, Modern Maid, Norge, Roper, Sears, Speed Queen, Whirlpool brands. This Part #wp68233-2 replaces 68233-2, 69543-4, 66556-8, AP4083270, PS2072566. Refrigerator Plastic Paragon Defrost Timer will run a 21 minute cycle after every 8 hours of run time.