This Revolution Boom Head from In The Ditch is a direct replacement for the Holmes 440, SP8000, SP12000 Side Puller, and the Century Midnight Express. The head accepts 3/8″ and 7/16″ wire rope, and it has a 12,000 lb. rating. The guide cover comes off easily with one hand, which allows the wire rope to be installed with ease. 360 Degree Revolution Sold as each Tuff Coat Black finish Length: 14″ Width: 4″ Height: 12″