I found a broken spring sitting on top of the battery of my LX255 tractor. The coil is black, about 1 1/4 inches long, and 3/4 in diam. One end hooks 1/2 inch from the coil and turns outward, and the other end extends about 1 1/4 inches to where the hook broke before turning inward. It is a very strong spring and seems to be quite clean compared to the rest of the machine. Can anyone tell me where this came from, what it's for, and/or a part number?

Hi,
Only one spring comes to mind with those dimensions on an LX and the is the spring on the park brake lever, M74440. See #8 in picture.
Peace,
Clarke

Clarke, you are good!