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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69-92 of 1,605 Results
Crankshaft: 21XM V2 Outboard Marine Crankshaft: 21XM V2 Outboard Marine
5 out of 5 Customer Rating
Crankshaft: 21XM V2 Outboard Marine
$130.94
Prop Shaft: 21XM Prop Shaft: 21XM
5 out of 5 Customer Rating
Prop Shaft: 21XM
$57.74
Side Plate: 21XM Side Plate: 21XM
3.3 out of 5 Customer Rating
Side Plate: 21XM
$22.24
Cylinder & Piston Assembly: 21XM V2 Outboard Marine Cylinder & Piston Assembly: 21XM V2 Outboard Marine
4.1 out of 5 Customer Rating
Cylinder & Piston Assembly: 21XM V2 Outboard Marine
$155.31
Gasket Head: 21XM V2 Outboard Marine Gasket Head: 21XM V2 Outboard Marine
4.7 out of 5 Customer Rating
Gasket Head: 21XM V2 Outboard Marine
$6.49
Flywheel Nut: 21XM Flywheel Nut: 21XM
4.4 out of 5 Customer Rating
Flywheel Nut: 21XM
$2.55 Price reduced from $8.49 to
Clearance Sale! ⓘ
Flex Shaft Housing: 21XM Flex Shaft Housing: 21XM
3.6 out of 5 Customer Rating
Flex Shaft Housing: 21XM
$10.86
O-Ring Set #60B O-Ring Set #60B
5 out of 5 Customer Rating
O-Ring Set #60B
$2.53 Price reduced from $8.43 to
Clearance Sale! ⓘ
Low Unit Screw (4): 21XM Low Unit Screw (4): 21XM
3.6 out of 5 Customer Rating
Low Unit Screw (4): 21XM
$10.86
Crankshaft: 21XZ-M Inboard Marine Crankshaft: 21XZ-M Inboard Marine
5 out of 5 Customer Rating
Crankshaft: 21XZ-M Inboard Marine
$149.99
Prop Nut: 21XM Prop Nut: 21XM
3.9 out of 5 Customer Rating
Prop Nut: 21XM
$6.49
Arm Shaft Assembly: 21XM Arm Shaft Assembly: 21XM
3.9 out of 5 Customer Rating
Arm Shaft Assembly: 21XM
$13.75
Cover Plate: 21XZ-B Cover Plate: 21XZ-B
4.9 out of 5 Customer Rating
Cover Plate: 21XZ-B
$22.04
Rotor Guide Screw #20J Rotor Guide Screw #20J
5 out of 5 Customer Rating
Rotor Guide Screw #20J
$6.49
#8 Glow Plug Long Medium Air Car #8 Glow Plug Long Medium Air Car
4.1 out of 5 Customer Rating
#8 Glow Plug Long Medium Air Car
$11.99
Exhaust Pipe Assembly: T-120 160 Exhaust Pipe Assembly: T-120 160
3.6 out of 5 Customer Rating
Exhaust Pipe Assembly: T-120 160
$22.04
Speed P3 Gold Ultra Hot Plug Speed P3 Gold Ultra Hot Plug
5 out of 5 Customer Rating
Speed P3 Gold Ultra Hot Plug
$16.99
Pushrod Cover: FS-91 Surpass Pushrod Cover: FS-91 Surpass
4.5 out of 5 Customer Rating
Pushrod Cover: FS-91 Surpass
$10.90
Piston Pin: FS-90 160 Piston Pin: FS-90 160
4.1 out of 5 Customer Rating
Piston Pin: FS-90 160
$10.86
Valve Assembly Intake: FS-91 Surpass Valve Assembly Intake: FS-91 Surpass
3.3 out of 5 Customer Rating
Valve Assembly Intake: FS-91 Surpass
$38.01
Rocker Arm Support Assembly: FS-20 Rocker Arm Support Assembly: FS-20
5 out of 5 Customer Rating
Rocker Arm Support Assembly: FS-20
$10.90
Main Shaft: OMA-3820-1200W Main Shaft: OMA-3820-1200W
3.5 out of 5 Customer Rating
Main Shaft: OMA-3820-1200W
$8.99
Carburetor HAD313: GT60 Carburetor HAD313: GT60
5 out of 5 Customer Rating
Carburetor HAD313: GT60
$190.09
Carburetor Reducer 7mm, Red: Speed 21 V-Spec Carburetor Reducer 7mm, Red: Speed 21 V-Spec
5 out of 5 Customer Rating
Carburetor Reducer 7mm, Red: Speed 21 V-Spec
$21.10
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