I am working on my first quilt and, of course, I am relatively ignorant. However, I went on to eBay and found a walking foot for my Singer Stylist 538. I have been able to put a particular machine's name into the search box on e-Bay and had machines and parts of that particular model come up. I am sure that wouldn't work on just any machine at any given time, however, you can always look through the Singers - although that might be a long search.