The W11396033 is a genuine Whirlpool Refrigerator Door Light Switch. This part is essential for the proper functioning of your refrigerator. If the switch is not functioning properly the light may stay on when the door is closed and the temperatured of your fridge will not be maintained at the desired levels due to the heat generated by the lightbulb. Trust in Whirlpool's quality and reliability with part# W11396033.