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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265-288 of 1,605 Results
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! ⓘ
Cover Plate Assembly: 15LA Cover Plate Assembly: 15LA
4.1 out of 5 Customer Rating
Cover Plate Assembly: 15LA
$17.03
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! ⓘ
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! ⓘ
55HZ-R DRS Ringed .55 Helicopter Engine 55HZ-R DRS Ringed .55 Helicopter Engine
5 out of 5 Customer Rating
55HZ-R DRS Ringed .55 Helicopter Engine
$510.44
Inner Head: T1204 with O-Ring Inner Head: T1204 with O-Ring
4.9 out of 5 Customer Rating
Inner Head: T1204 with O-Ring
$39.26
101/102 Elements (6) 101/102 Elements (6)
4.1 out of 5 Customer Rating
101/102 Elements (6)
$13.83
P4 Turbo Plug Super Hot Off-Road P4 Turbo Plug Super Hot Off-Road
4.7 out of 5 Customer Rating
P4 Turbo Plug Super Hot Off-Road
$14.99
T-2090SC Tune Pipe: 21XZ-B, 21VZ-B, 25XZ, 30VG T-2090SC Tune Pipe: 21XZ-B, 21VZ-B, 25XZ, 30VG
3.3 out of 5 Customer Rating
T-2090SC Tune Pipe: 21XZ-B, 21VZ-B, 25XZ, 30VG
$173.43
O.S. Carburetor Body 12F5(B) Speed T1203 O.S. Carburetor Body 12F5(B) Speed T1203
3.7 out of 5 Customer Rating
O.S. Carburetor Body 12F5(B) Speed T1203
$47.99
Connecting Rod with Retainers: Speed T1201 Connecting Rod with Retainers: Speed T1201
4.1 out of 5 Customer Rating
Connecting Rod with Retainers: Speed T1201
$44.17
Crankcase: B2102 Speed Crankcase: B2102 Speed
4.9 out of 5 Customer Rating
Crankcase: B2102 Speed
$147.19
Crankshaft: O.S. Speed R2104 Crankshaft: O.S. Speed R2104
5 out of 5 Customer Rating
Crankshaft: O.S. Speed R2104
$262.05
Built-up Parts Set for Cylinder & Piston: O.S. Speed R2104 Built-up Parts Set for Cylinder & Piston: O.S. Speed R2104
5 out of 5 Customer Rating
Built-up Parts Set for Cylinder & Piston: O.S. Speed R2104
$309.38
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