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Polarstar Jack HPA Engine


Only 4 left in stock


Similar to its sister products, the JACK™ replaces the original gearbox components with a programmable pneumatic system allowing for higher performance and greater reliability over a gear driven system. Although economically priced, the JACK™ still retains the same performance and quality you have come to expect from PolarStar products. The JACK™ has only one moving part, the nozzle, which acts as its own poppet valve.

  • Designed, manufactured and built in the U.S.A.
  • Assembled from CNC machined aluminum components with high performance Delrin nozzle
  • Universal cylinder design is compatible with numerous gearbox version
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