Hello! I too work as a chef in a large restaurant and we have encountered the same problem before. We found a reliable Hobart parts supplier on the recommendation of our caterer. He recommended a company to us https://a2zparts.com/parts/hobart . They have a good reputation in the market and offer quality parts at a reasonable price. In addition, we received quick and efficient help from their customer service. I think you will not be disappointed if you choose this company for your Hobart parts needs.