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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937-960 of 1,755 Results
Standoff 5x12.7mm 1/2" (4): GT55 Standoff 5x12.7mm 1/2" (4): GT55
5 out of 5 Customer Rating
Standoff 5x12.7mm 1/2" (4): GT55
$29.49
Valve Spring: 56 FS Valve Spring: 56 FS
5 out of 5 Customer Rating
Valve Spring: 56 FS
$6.49
Bearing L-1050ZZ Bearing L-1050ZZ
3.3 out of 5 Customer Rating
Bearing L-1050ZZ
$17.99
Propeller Shaft Set: 3815-1000 Propeller Shaft Set: 3815-1000
5 out of 5 Customer Rating
Propeller Shaft Set: 3815-1000
$9.29 Price reduced from $30.99 to
Clearance Sale! ⓘ
Carburetor Body: #60LH, 50SX-H Carburetor Body: #60LH, 50SX-H
4.5 out of 5 Customer Rating
Carburetor Body: #60LH, 50SX-H
$48.41
Carburetor Rotor: 37SZ-H Carburetor Rotor: 37SZ-H
5 out of 5 Customer Rating
Carburetor Rotor: 37SZ-H
$26.24
102 Super Air Cleaner 102 Super Air Cleaner
5 out of 5 Customer Rating
102 Super Air Cleaner
$21.10
Crankcase: Speed R2101 Crankcase: Speed R2101
3.1 out of 5 Customer Rating
Crankcase: Speed R2101
$141.93
Crankcase: 21XZ-B Speed Spec II Crankcase: 21XZ-B Speed Spec II
4.1 out of 5 Customer Rating
Crankcase: 21XZ-B Speed Spec II
$157.70
O.S. Cylinder and Piston Assy Speed B2103 Type R O.S. Cylinder and Piston Assy Speed B2103 Type R
3.3 out of 5 Customer Rating
O.S. Cylinder and Piston Assy Speed B2103 Type R
$193.68
Drive Washer: 12CV Drive Washer: 12CV
4.1 out of 5 Customer Rating
Drive Washer: 12CV
$6.49
O-Ring Metal Valve: 120Surpass O-Ring Metal Valve: 120Surpass
5 out of 5 Customer Rating
O-Ring Metal Valve: 120Surpass
$6.49
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
$18.59 Price reduced from $61.99 to
Clearance Sale! ⓘ
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
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
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
Carb Reducer 5.8MM Natural TYII Carb Reducer 5.8MM Natural TYII
3.4 out of 5 Customer Rating
Carb Reducer 5.8MM Natural TYII
$20.05
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