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O.S. GT-33 Gasoline Airplane Engine w/ Muffler

Model No.: OS-38300

Price: US$419.90

Availability: This product is currently SOLD OUT
Order quantity:
Out of Stock

O.S. GT-33 Gasoline Engine for Airplane (with Muffler)

When it comes to gasoline aircraft engines, the GT-33 is in a class of its own. It has the muscle to swing larger props, and it stands out for many other reasons, too. The GT-33 runs more quietly than comparable engines while exceeding their output, and it starts easily with electronic ignition that accepts many battery types. Once again O.S. has produced a gas powerhouse for the serious pilot!


  • Produces 10% more power than any other engine in its class!
  • Electronic ignition system offers fast, easy starting — and accepts LiFe, LiPo, NiCd and NiMH power.
  • Rear-mounted Walbro® carb and intake simplify mounting and installation.
  • O.S. E-5030 muffler effectively controls exhaust noise without compromising performance.
  • Includes CM-6 spark plug.

Stock Number: OSMG1533
Displacement: 2.013 cu in (32.98 cc)
Bore: 1.417 in (36.0 mm)
Stroke: 1.276 in (32.4 mm)
RPM Range: 1,800-8,000
Output: 3.9 ps / 3.84 hp / 9,000 rpm
Engine: 34.72 oz (984 g)
Silencer: 5.65 (160 g)
Igniter: 3.70 oz (105 g)

Recommended Accessories
OSMG8955 74003510 Standoff 5 x 6.4 mm 1/4" GT55(4)
OSMG8956 74003520 Standoff 5 x 12.7 mm 1/2" GT55 (4)
OSMG8957 74003530 Standoff 5 x 19.1 mm 3/4" GT55 (4)
OSMG8958 74003540 Standoff 5 x 25.4 mm 1" GT55 (4)
OSMG8959 74003550 Standoff 5 x 31.8 mm 1-1/4" GT55 (4)
OSMG8960 74003560 Standoff 5 x 38.1 mm 1-1/2" GT55 (4)
OSMG8961 74003570 Standoff 5 x 44.5 mm 1-3/4" GT55 (4)
OSMG8962 74003580 Standoff 5 x 50.8 mm 2" GT55 (4)

Includes :

  • Engine,
  • E-5030 muffler,
  • Ignition module,
  • CM-6 spark plug,
  • Exhaust gasket

Code No. 38300

We have full range of O.S. products, if you cannot find your desired product(s) in our online store, please send request to [email protected].

This product was added to our catalog on Friday, 02. December 2011.
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