Product Details: Equip your semi truck to be Ready for the Road Ahead™, with the Parker 8.25" x 156" Pin Mount 4-Stage Hydraulic Telescopic Cylinder, a crucial device that functions as a high-efficiency hydraulic cylinder. This replacement device is designed with a series of nested stages that collapse into one another, reducing the need for excessive space and a large range of motion. Engineered with multiple durable components to tolerate extreme pressures. FleetPride is your First Click in Heavy Duty®.