KitchenAid Microwave Oven Combo Motors

As per manufacturer this no longer comes with the Spacer.

This motor is used to rotate the cooking tray.

This range oven convection motor assembly is a genuine OEM replacement designed to improve overall cooking performance by circulating hot air evenly throughout the oven cavity. By promoting consistent heat distribution, the motor helps deliver more even baking, roasting, and cooking results across all oven racks. Replacing a faulty convection motor can resolve issues such as uneven cooking tempera...

This part is used with down-draft models. It helps draw the steam and odors through the vent when the fan switch is activated.