W10435116 - Whirlpool Microwave Coupler

This Whirlpool Microwave Coupler (W10435116) is a genuine part specifically designed for Whirlpool microwaves, and it also fits a range of other brands including KitchenAid, Roper, Estate, Inglis, and Amana. The coupler serves a critical role in your appliance by connecting the magnetron, which generates the microwave energy, to the feed ports that launch this energy into the cooking chamber. Often referred to as a 'drive coupling' or also known as a 'turntable coupling' and 'microwave turntable support,' this part ensures the effective transfer of microwave power from the source to the cooking chamber. Made of durable plastic with a D-shaped insert for a secure fit on the motor shaft, it measures approximately 3 inches in diameter. This crucial part extends into the waveguide as an antenna-type probe to couple emissions, ensuring a tight and clean connection that prevents leakage and loss. A defective or loose coupler can lead to reduced heating efficiency, making it essential to check this component if you notice your microwave tray isn't turning as it should. Symptoms indicating the part may be failing include the microwave tray’s inability to turn and a noticeable decrease in heating efficiency. No tools are required for the replacement of this part, but it is recommended to inspect the support ring for any signs of damage before replacing the coupler. Verify your appliance's model number to ensure compatibility before making your purchase.