This is a replacement swivel boom end assembly for Century medium duty wreckers by Miller Industries. This assembly will fit the Century 5130/5230, 1624, and 1040B. This part can be used to replace Part Numbers: 12-0900431 and 12-0900432.
Shaft Dimensions: 10 3/4" x 4"4 1/2 " overall. 1/4" top plate. Under plate to end. 4 1/4"