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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272-295 of 1,808 Results
Carburetor Rotor: 60PS, FS-95V Carburetor Rotor: 60PS, FS-95V
5 out of 5 Customer Rating
Carburetor Rotor: 60PS, FS-95V
$30.44
Connecting Rod: 28XZ Connecting Rod: 28XZ
5 out of 5 Customer Rating
Connecting Rod: 28XZ
$48.51
Ignition Module IG-04: GF40 Ignition Module IG-04: GF40
3.3 out of 5 Customer Rating
Ignition Module IG-04: GF40
$119.78
Speed Flywheel Puller Speed Flywheel Puller
4 out of 5 Customer Rating
Speed Flywheel Puller
$48.34
Crankshaft: 21 Speed V-Spec Crankshaft: 21 Speed V-Spec
5 out of 5 Customer Rating
Crankshaft: 21 Speed V-Spec
$174.99
Crankcase: 21XZ-B Crankcase: 21XZ-B
4.8 out of 5 Customer Rating
Crankcase: 21XZ-B
$124.99
Screw Set (12): FS-40 Surpass Screw Set (12): FS-40 Surpass
5 out of 5 Customer Rating
Screw Set (12): FS-40 Surpass
$9.44
Cover Plate: GT15 Cover Plate: GT15
4.8 out of 5 Customer Rating
Cover Plate: GT15
$18.99
Heat Sink Head: 50SX-H Heat Sink Head: 50SX-H
5 out of 5 Customer Rating
Heat Sink Head: 50SX-H
$50.76
Rocker Arm Support Assembly FS91-240 Rocker Arm Support Assembly FS91-240
5 out of 5 Customer Rating
Rocker Arm Support Assembly FS91-240
$29.55
Inner Head: 21XZ-B Speed Inner Head: 21XZ-B Speed
5 out of 5 Customer Rating
Inner Head: 21XZ-B Speed
$52.99
Flex Pipe 240mm 1114A: FT-300 Flex Pipe 240mm 1114A: FT-300
5 out of 5 Customer Rating
Flex Pipe 240mm 1114A: FT-300
$48.32
Built-Up Parts Set (C&P) O.S. Speed T1204 Built-Up Parts Set (C&P) O.S. Speed T1204
5 out of 5 Customer Rating
Built-Up Parts Set (C&P) O.S. Speed T1204
$171.28
High Pressure Check Valve: 91HZ-R High Pressure Check Valve: 91HZ-R
5 out of 5 Customer Rating
High Pressure Check Valve: 91HZ-R
$21.10
Air Funnel: 56FS Air Funnel: 56FS
4.4 out of 5 Customer Rating
Air Funnel: 56FS
$17.08
Cylinder Head Screws: 56 FS Cylinder Head Screws: 56 FS
3.3 out of 5 Customer Rating
Cylinder Head Screws: 56 FS
$9.85
Drive Spacer: GT33 Drive Spacer: GT33
4.1 out of 5 Customer Rating
Drive Spacer: GT33
$44.22
Valve Spring: FS155A-P Valve Spring: FS155A-P
4.4 out of 5 Customer Rating
Valve Spring: FS155A-P
$6.49
Gasket Carburetor: FS-91 Surpass Gasket Carburetor: FS-91 Surpass
4.8 out of 5 Customer Rating
Gasket Carburetor: FS-91 Surpass
$6.49
Outer Head: R21 Outer Head: R21
3.6 out of 5 Customer Rating
Outer Head: R21
$96.84
O.S. Carburetor 22D (B) Without Reducer B2103 O.S. Carburetor 22D (B) Without Reducer B2103
4 out of 5 Customer Rating
O.S. Carburetor 22D (B) Without Reducer B2103
$162.83
Head Gasket: 10LA Head Gasket: 10LA
3.3 out of 5 Customer Rating
Head Gasket: 10LA
$6.49
Carburetor Rotor: #120AX Carburetor Rotor: #120AX
5 out of 5 Customer Rating
Carburetor Rotor: #120AX
$37.80
Slide Valve 12F2: 12XZ Speed Spec 3 Slide Valve 12F2: 12XZ Speed Spec 3
4 out of 5 Customer Rating
Slide Valve 12F2: 12XZ Speed Spec 3
$33.61
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