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120AX Ringed 1.20 Airplane Glow Engine without Muffler

Item No.
OS Engines - OSMG0651
$354.85
In Stock
Brand Logo
4.5 out of 5 Customer Rating

120AX Ringed 1.20 Airplane Glow Engine without Muffler

Item No.
OS Engines - OSMG0651
$354.85
  • Model Application: Ideal for 3D, Precision and Sport flying
  • Mounting Application: Mounts in same space as the .91FX
  • Construction: Steel piston ring and liner, aluminum piston
  • Carburetor: 70D with rearward angled needle valve for safety
  • Glowplug: O.S. #8 supplied with engine, A5 (OSMG2693) will also work
Product $354.85
Add Ons
Estimated Total: $354.85

120AX Ringed 1.20 Airplane Glow Engine without Muffler

Item No.
OS Engines - OSMG0651
4.5 out of 5 Customer Rating
Product $354.85
Add Ons
Estimated Total: $354.85
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Product Details

icon-box
In The Box
  • (1) O.S. Max Two-Stroke 1.20AX Ringed Engine
  • (1) #8 glow plug
  • (1) Prop washer and nut
  • (1) Needle valve extension set
  • (1) Decal sheet
  • (1) Product manual
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Needed to Complete
  • Fuel: Two-Stroke with 18% lubricant and 5-20% nitromethane
  • Muffler: E-5020 "Power Box"
  • Propeller: 15x10-12 or 16x8-10
  • Field Equipment: Glow starter, fuel filter, fuel pump, fuel tubing

Perfect for 3D, precision and sport flying!

Admit it: if you could ratchet up horsepower without having to increase the mounting space, you’d probably jump at the chance. Well, here it is. The 120AX boasts 25% more displacement than a .91 (think of the bigger props you can swing!) — and bolts into the same space, with almost no extra weight. Here’s a golden opportunity to boost your airplane's flying capabilities — with almost no modification!


O.S. Engines two year limited warranty

Product Specifications

Displacement 1.218 cu in (19.96cc)
Product Length 3.9" (100.2mm)
Cylinder Type Steel liner and piston
Engine (Only) Weight 20.88 oz (647 g)
Bore 1.197" (30.4mm)
Crankshaft Type Threaded
Power Type Glow
Plug Type O.S. #8
Stroke 1.083" (27.5mm)
Crankshaft Threads UNF5/16-24
Cylinders Single
Product Width 2.6" (67mm) at mounting tabs
Product Height 4.3" (109.2mm) from bottom of crankcast to top of cylinder head
Prop Range 15x10-12, 16x8-10
RPM Range 1,800 - 9,500 RPM
Starter Type Hand Held Starter