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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1,729-1,752 of 1,812 Results
Rocker Support: FS110A Rocker Support: FS110A
4.1 out of 5 Customer Rating
Rocker Support: FS110A
$29.60
Camshaft Cover Camshaft Cover
4.7 out of 5 Customer Rating
Camshaft Cover
$11.80
Rocker Cover,, Black: FSa-72II Rocker Cover,, Black: FSa-72II
4.1 out of 5 Customer Rating
Rocker Cover,, Black: FSa-72II
$25.51
Rocker Cover: FT-160 Rocker Cover: FT-160
4.1 out of 5 Customer Rating
Rocker Cover: FT-160
$22.04
Rotor Spring #9B Rotor Spring #9B
5 out of 5 Customer Rating
Rotor Spring #9B
$6.49
Screw Set (8): 15LA Screw Set (8): 15LA
3.9 out of 5 Customer Rating
Screw Set (8): 15LA
$8.46
Screw Set (8): 10LA (8) Screw Set (8): 10LA (8)
3.3 out of 5 Customer Rating
Screw Set (8): 10LA (8)
$8.49
Screw Set (8): 37SZ-H Screw Set (8): 37SZ-H
5 out of 5 Customer Rating
Screw Set (8): 37SZ-H
$9.85
Cap Screw 4x20mm (10): GT55 Cap Screw 4x20mm (10): GT55
3.9 out of 5 Customer Rating
Cap Screw 4x20mm (10): GT55
$11.80
Screw Set (12): FS-120 Surpass Screw Set (12): FS-120 Surpass
4.7 out of 5 Customer Rating
Screw Set (12): FS-120 Surpass
$17.08
Exhaust Seal O-Ring (2) Exhaust Seal O-Ring (2)
4.7 out of 5 Customer Rating
Exhaust Seal O-Ring (2)
$13.78
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
Tappet Screw: FS-20 48 Tappet Screw: FS-20 48
5 out of 5 Customer Rating
Tappet Screw: FS-20 48
$8.49
Thermo Insulator: GF30 Thermo Insulator: GF30
3.5 out of 5 Customer Rating
Thermo Insulator: GF30
$7.46
Lever Outer WLA-2: GT55 Lever Outer WLA-2: GT55
4.5 out of 5 Customer Rating
Lever Outer WLA-2: GT55
$13.80
Complete Carburetor Assembly: (61T2) O.S. FS-64V Complete Carburetor Assembly: (61T2) O.S. FS-64V
3.9 out of 5 Customer Rating
Complete Carburetor Assembly: (61T2) O.S. FS-64V
$153.99
Valve Throttle WLA-2: GT55 Valve Throttle WLA-2: GT55
4.1 out of 5 Customer Rating
Valve Throttle WLA-2: GT55
$15.76
Carburetor Complete 21M4(B) W/O Reducer Carburetor Complete 21M4(B) W/O Reducer
4.8 out of 5 Customer Rating
Carburetor Complete 21M4(B) W/O Reducer
$176.99
Connecting Rod O.S. Speed R21 Connecting Rod O.S. Speed R21
4.1 out of 5 Customer Rating
Connecting Rod O.S. Speed R21
$59.99
Cylinder & Piston Assembly O.S. Speed R2106 Cylinder & Piston Assembly O.S. Speed R2106
5 out of 5 Customer Rating
Cylinder & Piston Assembly O.S. Speed R2106
$204.99
Piston/Sleeve/Rod set: O.S. SPEED R2106 Piston/Sleeve/Rod set: O.S. SPEED R2106
4.5 out of 5 Customer Rating
Piston/Sleeve/Rod set: O.S. SPEED R2106
$279.99
Slide Valve 2 (21M) Slide Valve 2 (21M)
5 out of 5 Customer Rating
Slide Valve 2 (21M)
$32.99
Cylinder Liner 91HZ-R Speed 3D Cylinder Liner 91HZ-R Speed 3D
3.3 out of 5 Customer Rating
Cylinder Liner 91HZ-R Speed 3D
$121.99
Heatsink Head 55HZ.HZ-R Heatsink Head 55HZ.HZ-R
4.7 out of 5 Customer Rating
Heatsink Head 55HZ.HZ-R
$138.99
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