Equip your semi truck to be Ready for the Road Ahead , with the Custom Hoists 6" x 155.75" Pin Mount 4-Stage Hydraulic Telescopic Cylinder, a crucial device that functions as a high-efficiency hydraulic cylinder. By utilizing a series of nested stages that collapse into one another, this replacement device reduces the need for excessive space and a large range of motion. Prepared with multiple durable components to endure extreme pressures. FleetPride is your First Click in Heavy Duty .