The Worm Gear is an OEM part for Whirlpool mixers. This part drives the rotation of the planetary assembly. The planetary assembly is where the mixer's accessories attach.
You should replace the worm gear if it becomes worn out or damaged. Causes of a bad worm gear can include excessive strain from heavy or dense mixing tasks, lack of lubrication, or general wear and tear over time.
Symptoms of a bad worm gear include:
- The mixer attachments not turning
- Grinding or clicking noises during operation
- The mixer motor running but the attachments remaining stationary
This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.
Do-It-Yourself Stories from Customers like You
Worm gear failure on my KitchenAid 5 qt "professional" lift bowl mixer. Edward B. • Mount Horeb , WI • January 24, 2020
This was a problem that I'd had previously with this mixer. The worm gear, which is designed to fail (so that more serious damage does not occur to the motor), did fail while I was mixing some multi-grain bread dough. After the previous failure (pre-youtube days), I took the machine in for repair. The repair-shop cost came to about $150 in labor. Parts were extra. This time, I decided to do the repair myself, since I figured that I knew what was wrong. I found the appliancepartspros...
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