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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721-744 of 1,808 Results
Rear Bearing: 61-300 Rear Bearing: 61-300
4.5 out of 5 Customer Rating
Rear Bearing: 61-300
$22.16
Cam Cover: FS-62V Cam Cover: FS-62V
4.5 out of 5 Customer Rating
Cam Cover: FS-62V
$11.91
Carburetor Body: 61C, 95AX Carburetor Body: 61C, 95AX
5 out of 5 Customer Rating
Carburetor Body: 61C, 95AX
$48.51
Carburetor Screw: FS61-FT300 Carburetor Screw: FS61-FT300
4.1 out of 5 Customer Rating
Carburetor Screw: FS61-FT300
$6.49
Connecting Rod: GT15HZ Connecting Rod: GT15HZ
3.1 out of 5 Customer Rating
Connecting Rod: GT15HZ
$57.77
Connecting Rod: FT-120, 160 Connecting Rod: FT-120, 160
5 out of 5 Customer Rating
Connecting Rod: FT-120, 160
$67.22
Carburetor 22C-B: Speed B2102 Carburetor 22C-B: Speed B2102
3.1 out of 5 Customer Rating
Carburetor 22C-B: Speed B2102
$152.36
Connecting Rod: 28XZ Connecting Rod: 28XZ
5 out of 5 Customer Rating
Connecting Rod: 28XZ
$48.51
Crankcase: T1201 Speed Crankcase: T1201 Speed
5 out of 5 Customer Rating
Crankcase: T1201 Speed
$87.17
Crankshaft: 18TZ-TX Crankshaft: 18TZ-TX
3.3 out of 5 Customer Rating
Crankshaft: 18TZ-TX
$60.65
Crankshaft: 91HZ-R Speed 3D 3C Crankshaft: 91HZ-R Speed 3D 3C
4.7 out of 5 Customer Rating
Crankshaft: 91HZ-R Speed 3D 3C
$102.54
Outer Head: Speed 21XZ-GT Outer Head: Speed 21XZ-GT
3.9 out of 5 Customer Rating
Outer Head: Speed 21XZ-GT
$102.52
Heat Sink Head: 21TM Heat Sink Head: 21TM
4.1 out of 5 Customer Rating
Heat Sink Head: 21TM
$80.41
Fuel Nipple: #20A, B Fuel Nipple: #20A, B
3.1 out of 5 Customer Rating
Fuel Nipple: #20A, B
$10.86
Gasket Set: 25XZ Gasket Set: 25XZ
5 out of 5 Customer Rating
Gasket Set: 25XZ
$7.99
Mixture Control Valve #20K Mixture Control Valve #20K
3.9 out of 5 Customer Rating
Mixture Control Valve #20K
$19.05
Needle Valve Assembly 12F2-B: Speed T1202 Needle Valve Assembly 12F2-B: Speed T1202
3.9 out of 5 Customer Rating
Needle Valve Assembly 12F2-B: Speed T1202
$27.29
Rotor Stop Screw #2FB #2F Rotor Stop Screw #2FB #2F
3.9 out of 5 Customer Rating
Rotor Stop Screw #2FB #2F
$6.45
Slide Valve 22C(B): Speed B2102 Slide Valve 22C(B): Speed B2102
4.7 out of 5 Customer Rating
Slide Valve 22C(B): Speed B2102
$33.61
Crankcase O.S. Speed T1204 Crankcase O.S. Speed T1204
3.5 out of 5 Customer Rating
Crankcase O.S. Speed T1204
$86.74
Outer Head O.S. Speed B21 Adam Drake Edition 3 Outer Head O.S. Speed B21 Adam Drake Edition 3
3.1 out of 5 Customer Rating
Outer Head O.S. Speed B21 Adam Drake Edition 3
$97.99
M2001SC Manifold: 21XZ-R, 21VG M2001SC Manifold: 21XZ-R, 21VG
5 out of 5 Customer Rating
M2001SC Manifold: 21XZ-R, 21VG
$67.39
Cover Plate: 21VG-P Cover Plate: 21VG-P
3.7 out of 5 Customer Rating
Cover Plate: 21VG-P
$13.78
Crankshaft: B2101 Speed Crankshaft: B2101 Speed
4.5 out of 5 Customer Rating
Crankshaft: B2101 Speed
$205.99
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