OTC 4016 Dualmaster Jr. Two-Stage Hand Pump

The OTC 4016 Dualmaster Jr. Two-Stage Hand Pump is a compact, portable manual hydraulic pump ideal for professional mechanics, collision repair shops, heavy-duty truck service, agricultural, and construction maintenance. Delivering high oil volume (2.6 cu. in. per stroke) in the low-pressure stage for rapid ram advance and return, it automatically switches at 300 PSI to the high-pressure stage (0.16 cu. in. per stroke) for maximum force up to 10,000 PSI. Features a large 125 cu. in. usable oil reservoir for powering large rams or multiple small rams, a non-vented design with safety relief valve, and a 2-way valve for single-acting cylinders. With a 3/4″ piston stroke and maximum handle effort of 130 lbs., this lightweight pump provides dependable, flexible power without electricity or air.

Key Features and Compatibility:

• Two-stage operation
• 10,000 PSI max pressure
• Low stage: 2.6 cu. in./stroke (@300 PSI)
• High stage: 0.16 cu. in./stroke
• 125 cu. in. usable reservoir
• 2-way valve (single-acting)
• Safety relief valve
• 3/4″ piston stroke
• Fits single-acting rams

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