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These MK1728 Single-Piston pumps are specially designed and manufactured for use in wire-line oil saver applications on oil rigs. These pumps include a pressure release valve controlled with an easy access metal release knob. These solid, heavy-duty manual pumps have a built-in 160 cu-in reservoir.
Unit of Measure

Design Specifications

Maximum Pressure Rating

N/A 5000 psi

Piston Diameter

N/A 0.750 in

Stroke Length

N/A 1.50 in

Volume per Stroke

N/A 0.66 in³

Lever Load at 5,000 psi

N/A 140 lb

Reservoir Total Volume

N/A 155 in³

Reservoir Usable Capacity

N/A 141 in³

Assembly Weight

N/A 26 lb


N/A Orange

Body Material

N/A Steel



  • Single-piston design with durable all steel body
  • Piston is ground and hard chrome plated
  • Provides pressure up to 5,000 psi
  • Manual pressure release valve with easy-to-use knob
  • Supplied with a 24" operating lever with grip
  • 160 cu in. reservoir with breather
  • Pumps are shipped without oil

Some Other Oil Industry Products


  • MK1728-RK - Seal/repair kit for wire-line oil saver pump
  • MK1746 - A wire-line oil saver equivalent with a larger 250 cu in. reservoir
  • PDA 1 and PDA 2 used on control panels
  • CPS15-LR - 2 Speed pump used on pump panels
  • SP1A, 2A, 3A, 4A, 5A AND 6A - Simple single piston pumps used in a variety of oil applications
  • Stainless Steel pumps have also become more popular for some oil field applications