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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933-956 of 1,605 Results
Thrust Washer: 20-40FP Thrust Washer: 20-40FP
5 out of 5 Customer Rating
$7.99
Valve Exhaust: FS-52 Surpass Valve Exhaust: FS-52 Surpass
3.3 out of 5 Customer Rating
$19.14
Valve Collet: FS-91 Surpass Valve Collet: FS-91 Surpass
3.3 out of 5 Customer Rating
$10.86
Security Ring: OMA-2820-950 Security Ring: OMA-2820-950
3.9 out of 5 Customer Rating
$5.99
Exhaust Header Assembly: 56 FS Exhaust Header Assembly: 56 FS
4.5 out of 5 Customer Rating
$4.13 Price reduced from $13.78 to
Clearance Sale!
PowerBoost Pipe: 105HZ PowerBoost Pipe: 105HZ
5 out of 5 Customer Rating
$293.00
Crankshaft Bearing, Front: FS-91 Crankshaft Bearing, Front: FS-91
5 out of 5 Customer Rating
$26.34
Front Bearing: 61FX Front Bearing: 61FX
5 out of 5 Customer Rating
$22.16
Cam Follower: Sirius 7 Cam Follower: Sirius 7
4.1 out of 5 Customer Rating
$6.33 Price reduced from $21.12 to
Clearance Sale!
Camshaft: FS-91 Surpass Camshaft: FS-91 Surpass
3.7 out of 5 Customer Rating
$60.57
Carburetor Rotor: 91SZ-H Hyper Carburetor Rotor: 91SZ-H Hyper
3.3 out of 5 Customer Rating
$11.99 Price reduced from $39.99 to
Clearance Sale!
Piston Pin: 56 FS Piston Pin: 56 FS
4.5 out of 5 Customer Rating
$11.91
Rear Adapter: 18CV-RX Rear Adapter: 18CV-RX
5 out of 5 Customer Rating
$17.08
Cylinder and Piston Assembly: O.S. Speed B2104 Cylinder and Piston Assembly: O.S. Speed B2104
4.5 out of 5 Customer Rating
$193.70
Induction Silencer .12/.21: INS Induction Silencer .12/.21: INS
5 out of 5 Customer Rating
$46.39
Universal Nipple: #21, T1202 Speed Universal Nipple: #21, T1202 Speed
4.5 out of 5 Customer Rating
$11.95
Head Gasket: B2101 Speed Head Gasket: B2101 Speed
4.7 out of 5 Customer Rating
$12.04
Piston Pin: 25XZ Piston Pin: 25XZ
5 out of 5 Customer Rating
$7.99
Slide Valve 12F3: T1201 Speed Slide Valve 12F3: T1201 Speed
4.7 out of 5 Customer Rating
$11.71 Price reduced from $39.05 to
Clearance Sale!
Carburetor #61A: 75AX Carburetor #61A: 75AX
4.5 out of 5 Customer Rating
$97.80
Mid Bearing: 120-240 Mid Bearing: 120-240
5 out of 5 Customer Rating
$32.99
Carburetor Body: #20H Carburetor Body: #20H
3.7 out of 5 Customer Rating
$19.14
Carburetor Rotor: 40L, 55HZ Hyper Carburetor Rotor: 40L, 55HZ Hyper
3.7 out of 5 Customer Rating
$11.97 Price reduced from $39.91 to
Clearance Sale!
Carburetor Retainer: #61B, 91HZ Carburetor Retainer: #61B, 91HZ
5 out of 5 Customer Rating
$13.78