Where can you find parts for a Welbilt TR660a toaster oven?

You can find parts for a Welbilt TR660A toaster oven at various online retailers such as Amazon, eBay, or appliance parts websites like RepairClinic and PartSelect. Additionally, you might check the manufacturer's website for official parts or contact their customer service for assistance. Local appliance repair shops may also have compatible parts or can help order them for you.