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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896-919 of 1,808 Results
Gasket Head, .2 Aluminum: 21XZ-R Gasket Head, .2 Aluminum: 21XZ-R
5 out of 5 Customer Rating
Gasket Head, .2 Aluminum: 21XZ-R
$6.49
Mixture Control Screw #10M Mixture Control Screw #10M
3.7 out of 5 Customer Rating
Mixture Control Screw #10M
$11.80
O.S. Metering Needle (21M) R21GT O.S. Metering Needle (21M) R21GT
3.7 out of 5 Customer Rating
O.S. Metering Needle (21M) R21GT
$17.01
202 Elements (4) 202 Elements (4)
5 out of 5 Customer Rating
202 Elements (4)
$13.78
Carburetor 12F2-B: 12XZ Speed Spec 3 Carburetor 12F2-B: 12XZ Speed Spec 3
3.7 out of 5 Customer Rating
Carburetor 12F2-B: 12XZ Speed Spec 3
$118.99
T-2080 Manifold Assembly T-2080 Manifold Assembly
4.7 out of 5 Customer Rating
T-2080 Manifold Assembly
$61.99
7.0mm Carb Reducer (Red): AL2 O.S.SPEED R21GT2 7.0mm Carb Reducer (Red): AL2 O.S.SPEED R21GT2
3.1 out of 5 Customer Rating
7.0mm Carb Reducer (Red): AL2 O.S.SPEED R21GT2
$21.99
Carburetor Body: 22C(B), Speed B2102 Carburetor Body: 22C(B), Speed B2102
4.7 out of 5 Customer Rating
Carburetor Body: 22C(B), Speed B2102
$87.19
O.S. Carburetor Body 22D (B) Speed B2103 Type S O.S. Carburetor Body 22D (B) Speed B2103 Type S
4.1 out of 5 Customer Rating
O.S. Carburetor Body 22D (B) Speed B2103 Type S
$87.19
Carburetor Rotor: #2A Carburetor Rotor: #2A
4.1 out of 5 Customer Rating
Carburetor Rotor: #2A
$11.72
Carburetor: #11KR Slide, 21TM-R Revo Carburetor: #11KR Slide, 21TM-R Revo
5 out of 5 Customer Rating
Carburetor: #11KR Slide, 21TM-R Revo
$92.46
Crankcase: 25XZ Crankcase: 25XZ
4.5 out of 5 Customer Rating
Crankcase: 25XZ
$124.99
O.S. Crankcase OS Speed R21GT O.S. Crankcase OS Speed R21GT
4.1 out of 5 Customer Rating
O.S. Crankcase OS Speed R21GT
$185.04
Outer Head: T1202 Speed Outer Head: T1202 Speed
5 out of 5 Customer Rating
Outer Head: T1202 Speed
$102.46
Outer Head: 12XZ Speed Spec II Outer Head: 12XZ Speed Spec II
5 out of 5 Customer Rating
Outer Head: 12XZ Speed Spec II
$79.99
Metering Needle Assembly 21M2(B) Speed: R2101 Metering Needle Assembly 21M2(B) Speed: R2101
4.5 out of 5 Customer Rating
Metering Needle Assembly 21M2(B) Speed: R2101
$19.14
Rear Adapter: 15CV-X Rear Adapter: 15CV-X
3.3 out of 5 Customer Rating
Rear Adapter: 15CV-X
$16.09
Screw Set (10): 21VZ-R VZB Screw Set (10): 21VZ-R VZB
4.7 out of 5 Customer Rating
Screw Set (10): 21VZ-R VZB
$9.85
Cylinder Assembly Rebuild Kit: 21XZ-R VII Cylinder Assembly Rebuild Kit: 21XZ-R VII
4.8 out of 5 Customer Rating
Cylinder Assembly Rebuild Kit: 21XZ-R VII
$276.13
Cylinder Rebuild Kit: R21 Cylinder Rebuild Kit: R21
4.4 out of 5 Customer Rating
Cylinder Rebuild Kit: R21
$188.45
Cylinder Piston Assembly: R21 Cylinder Piston Assembly: R21
4.4 out of 5 Customer Rating
Cylinder Piston Assembly: R21
$132.77
Cylinder & Piston Assembly: 25XZ Cylinder & Piston Assembly: 25XZ
5 out of 5 Customer Rating
Cylinder & Piston Assembly: 25XZ
$159.99
Inner Head: R2101 Speed Inner Head: R2101 Speed
4 out of 5 Customer Rating
Inner Head: R2101 Speed
$52.69
O.S. Outer Head OS Speed R21GT O.S. Outer Head OS Speed R21GT
4.4 out of 5 Customer Rating
O.S. Outer Head OS Speed R21GT
$132.29
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