In Stock
Brand Logo
3.3 out of 5 Customer Rating

55HZ-H Hyper Ringed .55 Helicopter Engine

Item No.
OS Engines - OSMG1955
$418.63
55HZ-H Hyper Ringed .55 Helicopter Engine
In Stock
Brand Logo
3.3 out of 5 Customer Rating

55HZ-H Hyper Ringed .55 Helicopter Engine

Item No.
OS Engines - OSMG1955
$418.63
Product $418.63
Add Ons
Estimated Total: $418.63

55HZ-H Hyper Ringed .55 Helicopter Engine

Item No.
OS Engines - OSMG1955
3.3 out of 5 Customer Rating
Product $418.63
Add Ons
Estimated Total: $418.63
Earn points on this item ⓘ
Selected Store
The link to 55HZ-H Hyper Ringed .55 Helicopter Engine has been copied

Product Details

Quick Links
icon-pdf-download Manuals & Support

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

Product Specifications

Crankshaft Threads UNF1/4-28
Product Height 3.6 in (90.9 mm)
RPM Range 2,000 - 17,000 rpm
Cylinders Single
Product Width 2.0 in (52 mm) at mounting tabs
Total Weight 14.40 oz (408 g)
Displacement 0.55 cu in (8.93 cc)
Product Length 3.0" (76.6mm) from backplate to front bearing
Bore 0.91 in (23 mm)
Crankshaft Type Threaded
Power Type Glow
Stroke 0.85 in (23.5 mm)