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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793-816 of 1,605 Results
Throttle Lever: #20C Throttle Lever: #20C
5 out of 5 Customer Rating
Throttle Lever: #20C
$7.49
Valve Intake: FS-120 Surpass Valve Intake: FS-120 Surpass
3.9 out of 5 Customer Rating
Valve Intake: FS-120 Surpass
$37.80
Lock Washer 5mm Lock Washer 5mm
5 out of 5 Customer Rating
Lock Washer 5mm
$5.74 Price reduced from $19.14 to
Clearance Sale! ⓘ
Locknut Set: FS-120 Surpass Locknut Set: FS-120 Surpass
5 out of 5 Customer Rating
Locknut Set: FS-120 Surpass
$26.24
Silencer Set: F6040, GF40 Silencer Set: F6040, GF40
5 out of 5 Customer Rating
Silencer Set: F6040, GF40
$97.82
Silencer: F-4020, 56FS Silencer: F-4020, 56FS
5 out of 5 Customer Rating
Silencer: F-4020, 56FS
$48.51
Breather Nipple: 120-300 Breather Nipple: 120-300
5 out of 5 Customer Rating
Breather Nipple: 120-300
$6.49
Camshaft: FS-120 Surpass Camshaft: FS-120 Surpass
4.1 out of 5 Customer Rating
Camshaft: FS-120 Surpass
$60.72
Camshaft Gear: FR5-300 Camshaft Gear: FR5-300
3.7 out of 5 Customer Rating
Camshaft Gear: FR5-300
$44.13
Carburetor Insert: 80T, Sirius 7 Carburetor Insert: 80T, Sirius 7
3.3 out of 5 Customer Rating
Carburetor Insert: 80T, Sirius 7
$4.15 Price reduced from $13.83 to
Clearance Sale! ⓘ
Starting Shaft: 18TM Starting Shaft: 18TM
3.9 out of 5 Customer Rating
Starting Shaft: 18TM
$17.01
Speed Flywheel Key Speed Flywheel Key
5 out of 5 Customer Rating
Speed Flywheel Key
$36.84
Inner Head O.S.Speed B21 Adam Drake II Inner Head O.S.Speed B21 Adam Drake II
3.7 out of 5 Customer Rating
Inner Head O.S.Speed B21 Adam Drake II
$57.75
Thrust Plate: O.S. Speed B2104 Thrust Plate: O.S. Speed B2104
5 out of 5 Customer Rating
Thrust Plate: O.S. Speed B2104
$9.53
Carburetor Reducer 6mm: Speed 21 V-Spec II Carburetor Reducer 6mm: Speed 21 V-Spec II
3.3 out of 5 Customer Rating
Carburetor Reducer 6mm: Speed 21 V-Spec II
$20.05
Carburetor Body: 22B, 21XR-B Carburetor Body: 22B, 21XR-B
4.1 out of 5 Customer Rating
Carburetor Body: 22B, 21XR-B
$18.95 Price reduced from $63.18 to
Clearance Sale! ⓘ
Crankcase: R21 Crankcase: R21
3.7 out of 5 Customer Rating
Crankcase: R21
$119.70
Outer Head: B2101 Speed Outer Head: B2101 Speed
3.3 out of 5 Customer Rating
Outer Head: B2101 Speed
$108.03
Mixture Control Valve: 12F2 Mixture Control Valve: 12F2
5 out of 5 Customer Rating
Mixture Control Valve: 12F2
$5.15 Price reduced from $17.16 to
Clearance Sale! ⓘ
Cylinder Liner: FS155A-P Cylinder Liner: FS155A-P
5 out of 5 Customer Rating
Cylinder Liner: FS155A-P
$58.85
Fuel Inlet Nipple: 12-240 Fuel Inlet Nipple: 12-240
4.9 out of 5 Customer Rating
Fuel Inlet Nipple: 12-240
$6.49
Under Cover: IL-300 Dia-Star Under Cover: IL-300 Dia-Star
3.7 out of 5 Customer Rating
Under Cover: IL-300 Dia-Star
$16.81
Head Gasket: 56 FS Head Gasket: 56 FS
5 out of 5 Customer Rating
Head Gasket: 56 FS
$6.49
Rocker Cover Gasket: GF40 Rocker Cover Gasket: GF40
3.7 out of 5 Customer Rating
Rocker Cover Gasket: GF40
$10.94
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