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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1,105-1,128 of 1,812 Results
Connecting Rod: FS81 Alpha Connecting Rod: FS81 Alpha
3.9 out of 5 Customer Rating
Connecting Rod: FS81 Alpha
$27.29
Connecting Rod: GGT10 Connecting Rod: GGT10
4.9 out of 5 Customer Rating
Connecting Rod: GGT10
$48.47
Header Pipe Spring Header Pipe Spring
3.7 out of 5 Customer Rating
Header Pipe Spring
$11.80
Carburetor Body: 12F2-B, Speed T1202 Carburetor Body: 12F2-B, Speed T1202
4.5 out of 5 Customer Rating
Carburetor Body: 12F2-B, Speed T1202
$52.61
Carburetor Retainer: 12TZ Spec II Carburetor Retainer: 12TZ Spec II
3.7 out of 5 Customer Rating
Carburetor Retainer: 12TZ Spec II
$13.78
Cover Plate: 25XZ Cover Plate: 25XZ
5 out of 5 Customer Rating
Cover Plate: 25XZ
$21.28
Crankshaft: T1201 Speed Crankshaft: T1201 Speed
5 out of 5 Customer Rating
Crankshaft: T1201 Speed
$130.92
Crankshaft: 21VZ-B (P) Crankshaft: 21VZ-B (P)
4.5 out of 5 Customer Rating
Crankshaft: 21VZ-B (P)
$115.57
Outer Head: Speed 21XZ-B Spec III Outer Head: Speed 21XZ-B Spec III
5 out of 5 Customer Rating
Outer Head: Speed 21XZ-B Spec III
$102.52
Outer Head: 28XZ Outer Head: 28XZ
3.7 out of 5 Customer Rating
Outer Head: 28XZ
$102.52
Inner Head: 25XZ Inner Head: 25XZ
3.7 out of 5 Customer Rating
Inner Head: 25XZ
$57.99
Outer Head: 21XZ-B Spec 2 Outer Head: 21XZ-B Spec 2
3.7 out of 5 Customer Rating
Outer Head: 21XZ-B Spec 2
$125.67
Needle #20E Needle #20E
4.5 out of 5 Customer Rating
Needle #20E
$13.78
Outer Head: O.S. Max .12 TG Version 4 Outer Head: O.S. Max .12 TG Version 4
3.1 out of 5 Customer Rating
Outer Head: O.S. Max .12 TG Version 4
$74.79
Joint Spring T-2040 Joint Spring T-2040
4.1 out of 5 Customer Rating
Joint Spring T-2040
$13.78
Carburetor Rotor: 61G, 91HZ-R, Speed 3D Carburetor Rotor: 61G, 91HZ-R, Speed 3D
5 out of 5 Customer Rating
Carburetor Rotor: 61G, 91HZ-R, Speed 3D
$52.52
O.S. Cylinder Piston Rod Set Speed B2103 Type S O.S. Cylinder Piston Rod Set Speed B2103 Type S
3.3 out of 5 Customer Rating
O.S. Cylinder Piston Rod Set Speed B2103 Type S
$242.95
Cylinder & Piston: 21XZ-B Speed Spec III Cylinder & Piston: 21XZ-B Speed Spec III
3.3 out of 5 Customer Rating
Cylinder & Piston: 21XZ-B Speed Spec III
$176.56
Inner Head: 12XZ Speed Spec II Inner Head: 12XZ Speed Spec II
5 out of 5 Customer Rating
Inner Head: 12XZ Speed Spec II
$30.99
Outer Head: 21XZ-B Speed Outer Head: 21XZ-B Speed
3.7 out of 5 Customer Rating
Outer Head: 21XZ-B Speed
$94.99
Piston Pin: 15RX Piston Pin: 15RX
4.1 out of 5 Customer Rating
Piston Pin: 15RX
$6.29
Piston Pin: 28XZ Piston Pin: 28XZ
3.3 out of 5 Customer Rating
Piston Pin: 28XZ
$10.90
Intake Manifold: GF40 Intake Manifold: GF40
3.6 out of 5 Customer Rating
Intake Manifold: GF40
$21.17
Rear Bearing: FS-61 Rear Bearing: FS-61
3.4 out of 5 Customer Rating
Rear Bearing: FS-61
$26.34
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