This Genuine KitchenAid Mixer End Cover fits many 4.5 and 5 Quart KitchenAid Mixers, including the K45, KSM90, KSM150 and K5SS models.
This is the very end piece of your mixer, as shown in the diagram below. The End Cover has several vent holes which are used to vent the motor. This part WP240253-1 replaces obsolete part number 4162055 and 240253-1. This is a White mixer End Cover, if you need a different color please contact Customer Service to find availability.