Overhaul your semi with components with Expertise Built In , with the OTR Upright Mount Steel Hydraulic Reservoir that offers extensive hydraulic fluid storage. With a sophisticated design, this replacement tank is able to effortlessly retain the fluid needed for the hydraulic system, while simultaneously dissipating heat and pumping out trapped air. Manufactured with tight seals to minimize air leakage and deliver superb suspension. FleetPride is your First Click in Heavy Duty .