The KitchenAid 4162897 Worm Gear is a crucial replacement part for KitchenAid K5 series stand mixers. This gear is a key component of the mixer's drive system, responsible for transferring power from the motor to the various attachments. It handles the torque and stress involved in mixing everything from light batters to heavy doughs. https://partsfe.com/4162897-kitchen-aid-gearworm-k5-series-mixers