O.S. Engines

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

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Carburetor 70R: FS155A-P

$157.70

M10 In-Cowl Exhaust Header Pipe Side 60D: FS56A

$42.23

Muffler Extension: #744B

$19.05

Plug Terminal: Sirius 7

$10.94

Carburetor Rotor: #60J

$13.78

Cover Plate: FS81 Alpha

$17.16

Cover Plate: FS81 Alpha Pump

$19.14

Crankcase: 15LA Natural

$29.49

Crankcase: 120AX

$135.55

Crankcase: GT15HZ

$190.29

Crankcase: GT22

$97.70

Crankshaft: GF30

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

Clearance Sale! ⓘ

Crank Pin Stop Screw: GT33

$10.94

Cylinder Liner: 120 240

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

Clearance Sale! ⓘ

Cylinder Head: Sirius 7

$97.71

Drive Washer: 160FX

$27.29

Front Housing: Sirius 7

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

Clearance Sale! ⓘ

Exhaust Pipe Nut: F90-240

$6.49

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