In Stock

55HZ-H Hyper Ringed .55 Helicopter Engine
Item No.
OS Engines -
OSMG1955
$418.63
In Stock

55HZ-H Hyper Ringed .55 Helicopter Engine
Item No.
OS Engines -
OSMG1955
$418.63
55HZ-H Hyper Ringed .55 Helicopter Engine
Item No.
OS Engines -
OSMG1955
Product
$418.63
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$418.63
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Manuals & SupportSmall 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.

- 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) |