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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1,297-1,320 of 1,808 Results
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
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
Heat Sink Head: 18CV-R Heat Sink Head: 18CV-R
4.5 out of 5 Customer Rating
Heat Sink Head: 18CV-R
$91.50
Exhaust Seal O-Ring (2) Exhaust Seal O-Ring (2)
4.7 out of 5 Customer Rating
Exhaust Seal O-Ring (2)
$13.78
Radial Mount Set: GF30, GF30II Radial Mount Set: GF30, GF30II
4.2 out of 5 Customer Rating
Radial Mount Set: GF30, GF30II
$99.99
Carburetor #70N: FS120SII Carburetor #70N: FS120SII
4 out of 5 Customer Rating
Carburetor #70N: FS120SII
$141.93
Cylinder Head Fixing Screws: 21TM Cylinder Head Fixing Screws: 21TM
4.8 out of 5 Customer Rating
Cylinder Head Fixing Screws: 21TM
$9.85
E-4051 Muffler: GT15HZ E-4051 Muffler: GT15HZ
5 out of 5 Customer Rating
E-4051 Muffler: GT15HZ
$97.70
Locknut 1/4-M5: FS-52 Surpass Locknut 1/4-M5: FS-52 Surpass
4 out of 5 Customer Rating
Locknut 1/4-M5: FS-52 Surpass
$22.26
Air Bleed Screw: #40D Air Bleed Screw: #40D
3.4 out of 5 Customer Rating
Air Bleed Screw: #40D
$6.49
Silencer Body: F6040, GF40 Silencer Body: F6040, GF40
3.6 out of 5 Customer Rating
Silencer Body: F6040, GF40
$87.39
Cam Assembly Screw Set: SIrius 7 Cam Assembly Screw Set: SIrius 7
4.8 out of 5 Customer Rating
Cam Assembly Screw Set: SIrius 7
$15.76
Cam Cover: FS81 Alpha Cam Cover: FS81 Alpha
5 out of 5 Customer Rating
Cam Cover: FS81 Alpha
$10.82
Carburetor Body: #9B Carburetor Body: #9B
5 out of 5 Customer Rating
Carburetor Body: #9B
$54.64
Choke Arm Assembly: WLA-2, GT55 Choke Arm Assembly: WLA-2, GT55
5 out of 5 Customer Rating
Choke Arm Assembly: WLA-2, GT55
$7.46
Crankcase: FT-160 Crankcase: FT-160
5 out of 5 Customer Rating
Crankcase: FT-160
$174.34
Crankshaft: 55HZ Hyper Crankshaft: 55HZ Hyper
4.4 out of 5 Customer Rating
Crankshaft: 55HZ Hyper
$66.24
Crankshaft: FS120SEIII, FS120SE Crankshaft: FS120SEIII, FS120SE
4.8 out of 5 Customer Rating
Crankshaft: FS120SEIII, FS120SE
$102.52
Crank Pin Stop Screw: Sirius 7 Crank Pin Stop Screw: Sirius 7
4.4 out of 5 Customer Rating
Crank Pin Stop Screw: Sirius 7
$22.24
Cylinder & Piston: 35AX Cylinder & Piston: 35AX
5 out of 5 Customer Rating
Cylinder & Piston: 35AX
$99.51
Cylinder Head: FS110A Cylinder Head: FS110A
3.4 out of 5 Customer Rating
Cylinder Head: FS110A
$87.19
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