The WE4X881 Rotary Start Switch is a genuine OEM (Original Equipment Manufacturer) component crafted to precise specifications. This dryer rotary start switch initiates the dryer when activated. The WE4X881 Dryer Rotary Start Switch includes a plastic "D" shaped shaft. This high-quality OEM part is produced with premium materials for durability and accurate fit. Please refer to the instructions in the owner's manual during installation