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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1,393-1,416 of 1,605 Results
Cylinder & Piston: 25FX Cylinder & Piston: 25FX
5 out of 5 Customer Rating
Cylinder & Piston: 25FX
$40.73
Fuel Inlet: #61B, 91HZ Fuel Inlet: #61B, 91HZ
3.5 out of 5 Customer Rating
Fuel Inlet: #61B, 91HZ
$11.80
Needle Valve Assembly 61H: GT15 Needle Valve Assembly 61H: GT15
3.7 out of 5 Customer Rating
Needle Valve Assembly 61H: GT15
$22.04
Cover Plate: 56 FS Cover Plate: 56 FS
3.7 out of 5 Customer Rating
Cover Plate: 56 FS
$15.76
Carburetor: #11K Slide, 18TZ, 21TM Carburetor: #11K Slide, 18TZ, 21TM
3.3 out of 5 Customer Rating
Carburetor: #11K Slide, 18TZ, 21TM
$96.66
M2000SC 75mm Exhaust Manifold M2000SC 75mm Exhaust Manifold
3.4 out of 5 Customer Rating
M2000SC 75mm Exhaust Manifold
$63.18
#5 Recoil Starter Body #5 Recoil Starter Body
4.6 out of 5 Customer Rating
#5 Recoil Starter Body
$26.24
Rotor Guide Washer: 40L, 55HZ Hyper Rotor Guide Washer: 40L, 55HZ Hyper
3.2 out of 5 Customer Rating
Rotor Guide Washer: 40L, 55HZ Hyper
$3.28 Price reduced from $10.94 to
Clearance Sale! ⓘ
Crankcase: 12XZ Spec II Speed Crankcase: 12XZ Spec II Speed
4.1 out of 5 Customer Rating
Crankcase: 12XZ Spec II Speed
$21.00 Price reduced from $69.99 to
Clearance Sale! ⓘ
Carburetor: #60RA, FS81A Carburetor: #60RA, FS81A
4.8 out of 5 Customer Rating
Carburetor: #60RA, FS81A
$102.96
WLA-2 Screw: 96-603, GT15HZ WLA-2 Screw: 96-603, GT15HZ
3.6 out of 5 Customer Rating
WLA-2 Screw: 96-603, GT15HZ
$6.49
Intake Pipe AS-R: FT-240 Intake Pipe AS-R: FT-240
4.8 out of 5 Customer Rating
Intake Pipe AS-R: FT-240
$22.16
Prop Washer 10-12 Prop Washer 10-12
5 out of 5 Customer Rating
Prop Washer 10-12
$1.95 Price reduced from $6.49 to
Clearance Sale! ⓘ
Stator Assembly: 5020-490 .40 Stator Assembly: 5020-490 .40
3.6 out of 5 Customer Rating
Stator Assembly: 5020-490 .40
$27.90 Price reduced from $92.99 to
Clearance Sale! ⓘ
O.S. Carburetor 22E (B) Without Reducer Type R O.S. Carburetor 22E (B) Without Reducer Type R
4.2 out of 5 Customer Rating
O.S. Carburetor 22E (B) Without Reducer Type R
$162.83
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
Gasket Head Aluminum, .2mm: 19XZ-B Speed Gasket Head Aluminum, .2mm: 19XZ-B Speed
5 out of 5 Customer Rating
Gasket Head Aluminum, .2mm: 19XZ-B Speed
$5.31
Intake Manifold: FS155A-P Intake Manifold: FS155A-P
5 out of 5 Customer Rating
Intake Manifold: FS155A-P
$38.03
Mixture Control Valve 61H: GT15 Mixture Control Valve 61H: GT15
4.4 out of 5 Customer Rating
Mixture Control Valve 61H: GT15
$26.24
Camshaft: FS-120 II Camshaft: FS-120 II
5 out of 5 Customer Rating
Camshaft: FS-120 II
$66.15
Cylinder Head: 55AX Cylinder Head: 55AX
3.7 out of 5 Customer Rating
Cylinder Head: 55AX
$34.86
Crankcase: R21 Crankcase: R21
3.7 out of 5 Customer Rating
Crankcase: R21
$119.70
Carburetor Body: 70T, GF30 Carburetor Body: 70T, GF30
5 out of 5 Customer Rating
Carburetor Body: 70T, GF30
$97.90
Crankcase: 50SX-H Crankcase: 50SX-H
3.1 out of 5 Customer Rating
Crankcase: 50SX-H
$67.24
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