Equip your semi with essential parts with Expertise Built In™, with the OTR PK Series 11 GPM Hydraulic Box Pump that serves a reliable hydraulic dump to transfer loads. By utilizing a pressure-driven system, this replacement component is able to elevate the beds of trucks and trailers to dump cargo goods or materials. Built with a solid metal body to withstand high-pressure applications. FleetPride is your First Click in Heavy Duty®.