Product Details: Ensure your semi truck is ready for the journey ahead with a high-efficiency hydraulic cylinder, with the Custom Hoists 6" x 134.75" Pin Mount 4- Stage Hydraulic Telescopic Cylinder. Thanks to its series of nested stages that collapse into one another, this replacement device reduces the need for excessive space and a large range of motion. Crafted with multiple durable components to withstand extreme pressures. FleetPride is your First Click in Heavy Duty®.