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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1,293-1,316 of 1,605 Results
Crankshaft: 21VZ-B (P) Crankshaft: 21VZ-B (P)
4.5 out of 5 Customer Rating
Crankshaft: 21VZ-B (P)
$34.67 Price reduced from $115.57 to
Clearance Sale! ⓘ
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
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
Piston Pin: 28XZ Piston Pin: 28XZ
3.3 out of 5 Customer Rating
Piston Pin: 28XZ
$3.27 Price reduced from $10.90 to
Clearance Sale! ⓘ
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
Cam Follower: 91-300 Cam Follower: 91-300
5 out of 5 Customer Rating
Cam Follower: 91-300
$22.04
Camshaft: FS-120 II Camshaft: FS-120 II
5 out of 5 Customer Rating
Camshaft: FS-120 II
$66.15
Carburetor Body: #60F Carburetor Body: #60F
5 out of 5 Customer Rating
Carburetor Body: #60F
$37.80
Carburetor Rotor: 40K, 46AXII Carburetor Rotor: 40K, 46AXII
5 out of 5 Customer Rating
Carburetor Rotor: 40K, 46AXII
$33.61
Connecting Rod: 32SX-H Connecting Rod: 32SX-H
4.4 out of 5 Customer Rating
Connecting Rod: 32SX-H
$21.10
Connecting Rod: 40-46 Connecting Rod: 40-46
3.6 out of 5 Customer Rating
Connecting Rod: 40-46
$22.04
Cover Plate: GT55 Cover Plate: GT55
5 out of 5 Customer Rating
Cover Plate: GT55
$41.99
Crankcase: GT33 Crankcase: GT33
4 out of 5 Customer Rating
Crankcase: GT33
$97.81
Cylinder Head: .25AX Cylinder Head: .25AX
5 out of 5 Customer Rating
Cylinder Head: .25AX
$19.99
Gasket Set: 37SZ-H Gasket Set: 37SZ-H
3.6 out of 5 Customer Rating
Gasket Set: 37SZ-H
$10.94
Gasket Set: 140RX Gasket Set: 140RX
4.4 out of 5 Customer Rating
Gasket Set: 140RX
$8.43
Gasket Carburetor: #60B Gasket Carburetor: #60B
5 out of 5 Customer Rating
Gasket Carburetor: #60B
$6.49
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