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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73-96 of 1,812 Results
Rotor Spring #4B #4D #4C Rotor Spring #4B #4D #4C
4.1 out of 5 Customer Rating
Rotor Spring #4B #4D #4C
$6.49
Screw Set CZ-MX (8) Screw Set CZ-MX (8)
4.7 out of 5 Customer Rating
Screw Set CZ-MX (8)
$7.46
Side Plate: 21XM Side Plate: 21XM
3.3 out of 5 Customer Rating
Side Plate: 21XM
$22.24
Cylinder Head: 21XM V2 Outboard Marine Cylinder Head: 21XM V2 Outboard Marine
4 out of 5 Customer Rating
Cylinder Head: 21XM V2 Outboard Marine
$91.34
Lower Unit: 21XM Lower Unit: 21XM
4.8 out of 5 Customer Rating
Lower Unit: 21XM
$100.94
Marine Head Assembly: 18CVR-M Marine Head Assembly: 18CVR-M
4.8 out of 5 Customer Rating
Marine Head Assembly: 18CVR-M
$48.30
Needle Assembly 21-120 Needle Assembly 21-120
5 out of 5 Customer Rating
Needle Assembly 21-120
$22.04
Flex Shaft: 21XM Flex Shaft: 21XM
4.4 out of 5 Customer Rating
Flex Shaft: 21XM
$25.20
Front Bearing: 21RZ-B Front Bearing: 21RZ-B
4.2 out of 5 Customer Rating
Front Bearing: 21RZ-B
$27.29
Crankcase: 18CV-R Crankcase: 18CV-R
3.4 out of 5 Customer Rating
Crankcase: 18CV-R
$52.52
Crankcase: 21XM Crankcase: 21XM
3.4 out of 5 Customer Rating
Crankcase: 21XM
$125.10
Muffler: E2050-2, 21XM, V2 Outboard Marine Muffler: E2050-2, 21XM, V2 Outboard Marine
4 out of 5 Customer Rating
Muffler: E2050-2, 21XM, V2 Outboard Marine
$87.29
Cylinder & Piston: O.S. SPEED R21 EURO Cylinder & Piston: O.S. SPEED R21 EURO
5 out of 5 Customer Rating
Cylinder & Piston: O.S. SPEED R21 EURO
$249.99
Cavitation Plt: 21XM Cavitation Plt: 21XM
4.2 out of 5 Customer Rating
Cavitation Plt: 21XM
$22.24
Needle Assembly #40A Needle Assembly #40A
4 out of 5 Customer Rating
Needle Assembly #40A
$22.04
Screw Set CZ-M (8) Screw Set CZ-M (8)
3.6 out of 5 Customer Rating
Screw Set CZ-M (8)
$9.85
Screw Set (10): 21XM Screw Set (10): 21XM
5 out of 5 Customer Rating
Screw Set (10): 21XM
$11.75
Rear Board Unit Fixing Screw: 21XM V2 Outboard Rear Board Unit Fixing Screw: 21XM V2 Outboard
5 out of 5 Customer Rating
Rear Board Unit Fixing Screw: 21XM V2 Outboard
$10.86
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
Type F Glow Plug Medium: Four Stroke Type F Glow Plug Medium: Four Stroke
5 out of 5 Customer Rating
Type F Glow Plug Medium: Four Stroke
$13.99
#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
#6 A3 Glow Plug Hot Air #6 A3 Glow Plug Hot Air
4 out of 5 Customer Rating
#6 A3 Glow Plug Hot Air
$11.99
Cylinder Liner: 91FX Cylinder Liner: 91FX
4.8 out of 5 Customer Rating
Cylinder Liner: 91FX
$88.92
Thermo Insulator 21J3 Thermo Insulator 21J3
4.6 out of 5 Customer Rating
Thermo Insulator 21J3
$19.14
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