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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817-840 of 1,755 Results
Gasket Exhaust: GT55 Gasket Exhaust: GT55
5 out of 5 Customer Rating
Gasket Exhaust: GT55
$7.46
M11 Header Pipe Nut: FS070S and FS91S II M11 Header Pipe Nut: FS070S and FS91S II
3.7 out of 5 Customer Rating
M11 Header Pipe Nut: FS070S and FS91S II
$6.49
Needle Valve Holder Assembly #61B: 91HZ Needle Valve Holder Assembly #61B: 91HZ
5 out of 5 Customer Rating
Needle Valve Holder Assembly #61B: 91HZ
$11.80
O-Ring Rubber Gasket: 120AX O-Ring Rubber Gasket: 120AX
5 out of 5 Customer Rating
O-Ring Rubber Gasket: 120AX
$10.94
Rocker Support: FS110A Rocker Support: FS110A
4.1 out of 5 Customer Rating
Rocker Support: FS110A
$8.88 Price reduced from $29.60 to
Clearance Sale! ⓘ
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 40L-R: 55HZ-R Carburetor 40L-R: 55HZ-R
5 out of 5 Customer Rating
Carburetor 40L-R: 55HZ-R
$260.43
Carburetor HAD313: GT60 Carburetor HAD313: GT60
5 out of 5 Customer Rating
Carburetor HAD313: GT60
$190.09
Exhaust Header Pipe Assembly: F6020 FS155A-P Exhaust Header Pipe Assembly: F6020 FS155A-P
5 out of 5 Customer Rating
Exhaust Header Pipe Assembly: F6020 FS155A-P
$25.29
#10 A5 Glow Plug Cold Air #10 A5 Glow Plug Cold Air
3.3 out of 5 Customer Rating
#10 A5 Glow Plug Cold Air
$13.99
Motor Mount: FT120, FT160 Motor Mount: FT120, FT160
3.7 out of 5 Customer Rating
Motor Mount: FT120, FT160
$44.13
Motor Mount: FS52S, 56A Motor Mount: FS52S, 56A
4.5 out of 5 Customer Rating
Motor Mount: FS52S, 56A
$36.85
Rear Bearing: FS120 III Rear Bearing: FS120 III
3.7 out of 5 Customer Rating
Rear Bearing: FS120 III
$10.08 Price reduced from $33.61 to
Clearance Sale! ⓘ
Carburetor Body: 61T, FS-62V Carburetor Body: 61T, FS-62V
4.1 out of 5 Customer Rating
Carburetor Body: 61T, FS-62V
$11.68 Price reduced from $38.95 to
Clearance Sale! ⓘ
Speed Hex Wrench Ball Driver 2.0mm Speed Hex Wrench Ball Driver 2.0mm
3.3 out of 5 Customer Rating
Speed Hex Wrench Ball Driver 2.0mm
$36.84
55HZ-H Hyper Ringed .55 Helicopter Engine 55HZ-H Hyper Ringed .55 Helicopter Engine
3.3 out of 5 Customer Rating
55HZ-H Hyper Ringed .55 Helicopter Engine
$418.63
Built-Up Parts Set (C&P) O.S. Speed T1204 Built-Up Parts Set (C&P) O.S. Speed T1204
5 out of 5 Customer Rating
Built-Up Parts Set (C&P) O.S. Speed T1204
$171.28
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
Cover Plate: 12TG Cover Plate: 12TG
5 out of 5 Customer Rating
Cover Plate: 12TG
$11.80
Cover Plate: 105HX-R Cover Plate: 105HX-R
5 out of 5 Customer Rating
Cover Plate: 105HX-R
$28.45
Crankcase: 21XZ-R VII Crankcase: 21XZ-R VII
3.1 out of 5 Customer Rating
Crankcase: 21XZ-R VII
$45.70 Price reduced from $152.36 to
Clearance Sale! ⓘ
O.S. Cylinder Piston Rod Set Speed B2103 Type R O.S. Cylinder Piston Rod Set Speed B2103 Type R
5 out of 5 Customer Rating
O.S. Cylinder Piston Rod Set Speed B2103 Type R
$242.95
Cylinder & Piston Assembly: 12XZ Cylinder & Piston Assembly: 12XZ
3.3 out of 5 Customer Rating
Cylinder & Piston Assembly: 12XZ
$99.51
Inner Cylinder Head: 12XZ Inner Cylinder Head: 12XZ
4.1 out of 5 Customer Rating
Inner Cylinder Head: 12XZ
$32.56
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