Bought two to replace in existing garage doors for which no key was available.
They fit perfectly and were quick to replace.
Now we have a lock with keys.
I measured old spring and ordered a replacement from Preferred Doors. The spring took a few days to get due to supply chain delays these days. When it arrived, it was packed well, and it was what I ordered and expected. I installed it without any problems, and my door is working again. Time will tell how well it holds up, the old spring lasted over 10 years.