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OS Engines

55HZ-H Hyper Ringed .55 Helicopter Engine

55HZ-H Hyper Ringed .55 Helicopter Engine

$481.49 USD
$481.49 USD
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55HZ-H Hyper Ringed .55 Helicopter Engine


















Small in size — delivers big 3D power!


The 55HZ-H Hyper Ringed from O.S. has the power and reliability to make your heli do virtually whatever you want! Capable of installing in the same space as the 50SX-H Hyper, it features a brand-new, 3-needle 40L carb, a four-arm throttle lever for easy servo adjustments and more.







O.S. Two Year Limited Warranty










  • Installs in the same space as the 50SX-Hyper

  • A brand-new, 3-needle 40L carb

  • New porting






  • A four-arm throttle lever for easy servo adjustments

  • Durable, corrosion-proof bearings













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