O.S. Engines

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Quality and performance has made O.S. the standard in RC engines for over 80 years.
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1,585-1,608 of 1,755 Results
Carburetor: GT33 Carburetor: GT33
4.8 out of 5 Customer Rating
Carburetor: GT33
$190.20
M10 In-Cowl Exhaust Header Pipe Side 60D: FS56A M10 In-Cowl Exhaust Header Pipe Side 60D: FS56A
4 out of 5 Customer Rating
M10 In-Cowl Exhaust Header Pipe Side 60D: FS56A
$42.23
Muffler Extension: #744B Muffler Extension: #744B
4 out of 5 Customer Rating
Muffler Extension: #744B
$19.05
Crankcase: 15LA Natural Crankcase: 15LA Natural
4.8 out of 5 Customer Rating
Crankcase: 15LA Natural
$29.49
Crankcase: GT15HZ Crankcase: GT15HZ
4.8 out of 5 Customer Rating
Crankcase: GT15HZ
$190.29
Crankcase: GT22 Crankcase: GT22
3.4 out of 5 Customer Rating
Crankcase: GT22
$97.70
Crankshaft: GF30 Crankshaft: GF30
5 out of 5 Customer Rating
Crankshaft: GF30
$148.62
Crank Pin Stop Screw: GT33 Crank Pin Stop Screw: GT33
3.6 out of 5 Customer Rating
Crank Pin Stop Screw: GT33
$10.94
Drive Washer: 160FX Drive Washer: 160FX
5 out of 5 Customer Rating
Drive Washer: 160FX
$27.29
Exhaust Pipe Nut: F90-240 Exhaust Pipe Nut: F90-240
4.4 out of 5 Customer Rating
Exhaust Pipe Nut: F90-240
$6.49
Front Housing: Sirius 7 Front Housing: Sirius 7
4.4 out of 5 Customer Rating
Front Housing: Sirius 7
$519.74
Gasket Carburetor: F61-300 Gasket Carburetor: F61-300
4.8 out of 5 Customer Rating
Gasket Carburetor: F61-300
$6.49
Cylinder Gasket: GT60 Cylinder Gasket: GT60
4.2 out of 5 Customer Rating
Cylinder Gasket: GT60
$7.46
Intake Manifold: FS72 Alpha Intake Manifold: FS72 Alpha
5 out of 5 Customer Rating
Intake Manifold: FS72 Alpha
$7.26 Price reduced from $24.23 to
Clearance Sale! ⓘ
Mixture Control Valve #70C: FS120 Surpass II Mixture Control Valve #70C: FS120 Surpass II
4 out of 5 Customer Rating
Mixture Control Valve #70C: FS120 Surpass II
$22.26
Muffler Fixing Screw E-4051: GT15HZ Muffler Fixing Screw E-4051: GT15HZ
5 out of 5 Customer Rating
Muffler Fixing Screw E-4051: GT15HZ
$11.80
Needle #7M #7LFS Needle #7M #7LFS
3.6 out of 5 Customer Rating
Needle #7M #7LFS
$13.78
Pushrod Cover: FS-62V Pushrod Cover: FS-62V
3.6 out of 5 Customer Rating
Pushrod Cover: FS-62V
$14.84
Rocker Arm Shaft: FS-95V Rocker Arm Shaft: FS-95V
4.8 out of 5 Customer Rating
Rocker Arm Shaft: FS-95V
$6.49
Cover Fitting Screw (4) FL-70 Cover Fitting Screw (4) FL-70
5 out of 5 Customer Rating
Cover Fitting Screw (4) FL-70
$4.99
Pushrod: FS-95V Pushrod: FS-95V
4.2 out of 5 Customer Rating
Pushrod: FS-95V
$10.49
Motor Mount: OMA-50 Series Motor Mount: OMA-50 Series
5 out of 5 Customer Rating
Motor Mount: OMA-50 Series
$19.99
Slide Valve 21M Slide Valve 21M
5 out of 5 Customer Rating
Slide Valve 21M
$32.56
Rear Adapter: 18TM Rear Adapter: 18TM
3.2 out of 5 Customer Rating
Rear Adapter: 18TM
$19.05
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