O.S. Engines

Quality and performance has made O.S. the standard in RC engines for over 80 years.

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Crankcase: GT22

$97.70

Crankcase: GT15HZ

$190.29

Crankshaft: GF30

$44.59 ~~Price reduced from $148.62 to~~

Clearance Sale! ⓘ

Crank Pin Stop Screw: GT33

$10.94

Cylinder Head: Sirius 7

$97.71

Cylinder Liner: 120 240

$15.77 ~~Price reduced from $52.57 to~~

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Drive Washer: 160FX

$27.29

Exhaust Pipe Nut: F90-240

$6.49

Front Housing: Sirius 7

$210.06 ~~Price reduced from $519.74 to~~

Clearance Sale! ⓘ

Gasket Carburetor: F61-300

$6.49

Head Gasket .4 Aluminum: Sirius 7

$6.49

Cylinder Gasket: GT60

$7.46

Mixture Control Valve #70C: FS120 Surpass II

$22.26

Muffler Fixing Screw E-4051: GT15HZ

$11.80

Muffler Extension: 120AX

$26.24

Needle #86 #8H

$13.78

Needle #7M #7LFS

$13.78

Pushrod Cover: FS-62V

$14.84

Pushrod: FS-95V

$10.49

Cover Fitting Screw (4) FL-70

$4.99

Throttle Lever Assembly #2CK

$7.49

Motor Mount: OMA-50 Series

$19.99

Propeller Shaft Set: 3805 3810

$8.39 ~~Price reduced from $27.99 to~~

Clearance Sale! ⓘ

Pump Body Assembly: WLA-2 GT55

$32.99