This is a New Genuine Western Lift cylinder this is the one used on the Western Unimount and ultramount plows. This came on the standard, pro, pro plus, and MVP V plows. Could also be used on a conventional plow.
The info on the cylinder: It has 3/4" cylinder pin holes. 8" lift cylinder in the closed position it measures 15" from center to center on the hole. The part # on this Cylinder is 56538 Check the length of yours.
This came in several pump kits including 56777, 63999, 56588, 49450, 44320, 64777, 64999, 64620, 64588.