Hi. I used to have the same problem. I found a company that provides a wide range of Hobart parts. The company is
https://a2zparts.com/parts/hobart , and I would recommend it. I ordered several parts for my stirrer and they were all high quality. They were very durable and even outperformed the original parts I had used before. Also, the prices are pretty competitive, so I think it's a good choice for people looking for parts.