OTC's air powered hydraulic pump is an ideal all-around power source, for use with a variety of rams, presses, and hydraulic pullers, that develops 10,000 PSI hydraulic pressure at 100 PSI air pressure. Powerful unit features a two-stage release mechanism that gives fast or metered ram return while reducing hydraulic shock. Internal relief valve protects the hydraulic components from damage regardless of hydraulic pressure. 3/8 inch female NPT oil port offers convenient hookup to a wide variety of hydraulic powered equipment. Onboard capacity of 98 cubic inches of usable oil ensures you have the supply needed to power a wide range of equipment. Convenient foot pedal design allows fine control of pump while keeping both hands free. Backed by OTC's Lifetime Marathon Warranty. Value is at the core of the OTC tool and equipment portfolio. For a simple repair or the most complex drivability concern, these award-winning tools universally solve problems faster, and at better value, than any other product line available. Whether it's a specialty tool or unique piece of service equipment, OTC provides top solutions to modern automotive service challenges while increasing technicians' productivity and shop profits.