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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789-812 of 1,605 Results
Breather Nipple: 120-300 Breather Nipple: 120-300
5 out of 5 Customer Rating
Breather Nipple: 120-300
$6.49
Camshaft Gear: FR5-300 Camshaft Gear: FR5-300
3.7 out of 5 Customer Rating
Camshaft Gear: FR5-300
$44.13
Cover Plate Assembly: 15LA Cover Plate Assembly: 15LA
4.1 out of 5 Customer Rating
Cover Plate Assembly: 15LA
$17.03
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
Rocker Cover Gasket: GF40 Rocker Cover Gasket: GF40
3.7 out of 5 Customer Rating
Rocker Cover Gasket: GF40
$10.94
Head Gasket: 56 FS Head Gasket: 56 FS
5 out of 5 Customer Rating
Head Gasket: 56 FS
$6.49
Ignition Module IG-02: GT33 Ignition Module IG-02: GT33
5 out of 5 Customer Rating
Ignition Module IG-02: GT33
$104.01
Exhaust Header Pipe Assembly F-5050: FS-95V Exhaust Header Pipe Assembly F-5050: FS-95V
3.9 out of 5 Customer Rating
Exhaust Header Pipe Assembly F-5050: FS-95V
$19.14
Cover Plate: 200 Surpass Cover Plate: 200 Surpass
5 out of 5 Customer Rating
Cover Plate: 200 Surpass
$22.30
Lever Metering WLA-2: GT55 Lever Metering WLA-2: GT55
5 out of 5 Customer Rating
Lever Metering WLA-2: GT55
$11.87
Nozzle: 15FP-S RN Nozzle: 15FP-S RN
5 out of 5 Customer Rating
Nozzle: 15FP-S RN
$9.85
Pushrod Cover Assembly: 120Surpass Pushrod Cover Assembly: 120Surpass
4.7 out of 5 Customer Rating
Pushrod Cover Assembly: 120Surpass
$22.04
Piston: 50SX-H Piston: 50SX-H
4.1 out of 5 Customer Rating
Piston: 50SX-H
$37.80
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