Hee Hee!! You were on the right track for sure !! May have been used on a variety of equipment. I saw the original post here was older, but the picture of that caliper actually showed up on a current posting at "Identify Anything" !! (The posting to identify the caliper ends 11-20-2020) !! It was linked back to this site, which is how I arrived here. !! Maybe the original poster will see the post here and we can connect on the part. If not I will retrofit it with something else I guess !! Thanks For Your Response and Have A Great Day !!