Whirlpool also makes some of the Sears refrigerators ( 106.######## ) and Kitchen Aid as well as Inglis. Information on installing / replacing a defrost timer for many of the Whirlpool built refrigerators.
A tip from Fyxxez:
Whirlpool defrost timers only!
When I was a little unsure about hooking those defrost timers up, where the timer motor wire went , #1 terminal or # 2 terminal. Whirlpool tech line gave me an easy way out: