OTC Tools 4020 Air/Hydraulic Pump 10000 PSI 98 Cu In Reservoir

The OTC Tools 4020 is a powerful air-over-hydraulic pump designed to deliver 10,000 PSI of hydraulic pressure using standard 100 PSI shop air. This versatile power unit is ideal for automotive body repair, frame straightening, bearing installation, and other heavy-duty applications requiring substantial hydraulic force.

Key Features:

• Generates 10,000 PSI hydraulic pressure from 100 PSI air supply
• 98 cubic inch usable oil capacity in durable plastic reservoir
• 3/8" NPTF oil port for easy filling and maintenance
• Two-stage release mechanism for precise control
• Internal relief valve protects hydraulic components from overpressure
• Compatible with hydraulic rams, presses, and pullers rated for 10,000 PSI
• Weighs 15 lbs., 3 oz. for portability around the shop

With shop air as the energy source, this pump provides the power and oil capacity needed to drive large hydraulic rams up to 55 tons. The internal safety relief valve automatically protects all connected hydraulic equipment regardless of operating pressure, making it a reliable choice for professional technicians and serious DIY mechanics.