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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1,057-1,104 of 1,758 Results
Screw Metering WLA-2: GT55 Screw Metering WLA-2: GT55
4 out of 5 Customer Rating
$5.99
Thermo Insulator, 11K: 18TM Thermo Insulator, 11K: 18TM
4 out of 5 Customer Rating
$19.14
Dust Cover: 30VG Dust Cover: 30VG
4.4 out of 5 Customer Rating
$11.91
Exhaust Pipe Assembly: T-120 160 Exhaust Pipe Assembly: T-120 160
3.6 out of 5 Customer Rating
$22.04
Exhaust Pipe Nut: FS-120 Surpass Exhaust Pipe Nut: FS-120 Surpass
5 out of 5 Customer Rating
$6.49
Silencer E-4010A: 65AX Silencer E-4010A: 65AX
5 out of 5 Customer Rating
$52.62
O-Ring IV PRC #6H Rubber O-Ring IV PRC #6H Rubber
5 out of 5 Customer Rating
$6.49
Silencer Gasket: F-5040, FS110A Silencer Gasket: F-5040, FS110A
5 out of 5 Customer Rating
$6.49
Gasket Set: 12TZ Gasket Set: 12TZ
4.2 out of 5 Customer Rating
$10.94
Gasket Set: 160FX Gasket Set: 160FX
4 out of 5 Customer Rating
$10.94
Pan Head Screw 3x18mm (10) Pan Head Screw 3x18mm (10)
5 out of 5 Customer Rating
$3.57 Price reduced from $11.91 to
Clearance Sale!
Carburetor Body: 18TM Carburetor Body: 18TM
3.1 out of 5 Customer Rating
$46.31
Carburetor Body: #10H Carburetor Body: #10H
4.5 out of 5 Customer Rating
$13.99
Cylinder & Piston: 15LA Cylinder & Piston: 15LA
4.8 out of 5 Customer Rating
$33.18
Cylinder & Piston: 21XZ-B Cylinder & Piston: 21XZ-B
4.4 out of 5 Customer Rating
$165.99
Cylinder Piston Assembly: R21 Cylinder Piston Assembly: R21
4.4 out of 5 Customer Rating
$39.83 Price reduced from $132.77 to
Clearance Sale!
Outer Head: 21XZ-R VII Outer Head: 21XZ-R VII
5 out of 5 Customer Rating
$27.39 Price reduced from $91.32 to
Clearance Sale!
Outer Head: O.S. Speed B2104 Outer Head: O.S. Speed B2104
3.1 out of 5 Customer Rating
$31.02 Price reduced from $103.41 to
Clearance Sale!
Carburetor 12F2-B: 12XZ Speed Spec 3 Carburetor 12F2-B: 12XZ Speed Spec 3
3.7 out of 5 Customer Rating
$118.99
Carburetor 40L-R: 55HZ-R Carburetor 40L-R: 55HZ-R
5 out of 5 Customer Rating
$78.13 Price reduced from $260.43 to
Clearance Sale!
Carburetor #20C: 32SX-H HX Carburetor #20C: 32SX-H HX
3.3 out of 5 Customer Rating
$71.61
Inner Head: O.S.SPEED R21GT2 Inner Head: O.S.SPEED R21GT2
4.9 out of 5 Customer Rating
$57.99
Front Crankshaft Bearing: Speed T1202 Front Crankshaft Bearing: Speed T1202
5 out of 5 Customer Rating
$22.04
Crankcase: 21XZ-R Speed Crankcase: 21XZ-R Speed
5 out of 5 Customer Rating
$157.24
Crankcase Plug: GT55 Crankcase Plug: GT55
3.4 out of 5 Customer Rating
$17.16
Crankcase: GT15 Crankcase: GT15
5 out of 5 Customer Rating
$37.51 Price reduced from $125.03 to
Clearance Sale!
Cylinder Head: 56 FS Cylinder Head: 56 FS
5 out of 5 Customer Rating
$63.20
Outer Head O.S. Speed B21 Adam Drake Edition 3 Outer Head O.S. Speed B21 Adam Drake Edition 3
3.1 out of 5 Customer Rating
$97.99
101/102 Elements (6) 101/102 Elements (6)
4.1 out of 5 Customer Rating
$13.83
Carburetor Reducer 8.5mm, Purple: 21M Carburetor Reducer 8.5mm, Purple: 21M
5 out of 5 Customer Rating
$21.10
Front Bearing: 40-240 Front Bearing: 40-240
4.2 out of 5 Customer Rating
$21.17
Mid Bearing: 120-240 Mid Bearing: 120-240
5 out of 5 Customer Rating
$32.99
Rear Bearing: 25FX, 32F Rear Bearing: 25FX, 32F
4.1 out of 5 Customer Rating
$21.17
Carburetor Body: 21M(B), 21XZ-R Speed Carburetor Body: 21M(B), 21XZ-R Speed
4 out of 5 Customer Rating
$29.34 Price reduced from $97.81 to
Clearance Sale!
Carburetor Body: 21J2(B), 21XZ-B Speed Carburetor Body: 21J2(B), 21XZ-B Speed
5 out of 5 Customer Rating
$89.99
Carburetor Body: 21M Carburetor Body: 21M
4.8 out of 5 Customer Rating
$26.16 Price reduced from $87.21 to
Clearance Sale!
Crankcase: 21XZ-B Crankcase: 21XZ-B
4.8 out of 5 Customer Rating
$124.99
Crankcase: R21 Crankcase: R21
4 out of 5 Customer Rating
$136.57
Crankcase: 32SX-H Crankcase: 32SX-H
4.8 out of 5 Customer Rating
$48.41
Crankcase: FT-160 Crankcase: FT-160
5 out of 5 Customer Rating
$174.34
Crankcase Locating Pin: Sirius 7 Crankcase Locating Pin: Sirius 7
4 out of 5 Customer Rating
$6.49
Carburetor 12F3: T1201 Speed Carburetor 12F3: T1201 Speed
3.1 out of 5 Customer Rating
$135.65
Carburetor #10G: 15LA Carburetor #10G: 15LA
5 out of 5 Customer Rating
$25.29
Air Funnel #60RA: FS81 Alpha Air Funnel #60RA: FS81 Alpha
5 out of 5 Customer Rating
$5.74 Price reduced from $19.14 to
Clearance Sale!
Rear Bearing: 19XZ-B Speed Rear Bearing: 19XZ-B Speed
4.8 out of 5 Customer Rating
$109.38
Rear Bearing: 108-160 Rear Bearing: 108-160
4.9 out of 5 Customer Rating
$26.34
O.S. Carburetor Body 22E (B) Speed B2103 Type R O.S. Carburetor Body 22E (B) Speed B2103 Type R
5 out of 5 Customer Rating
$26.16 Price reduced from $87.19 to
Clearance Sale!
Carburetor Body: 61ER Carburetor Body: 61ER
5 out of 5 Customer Rating
$29.36 Price reduced from $97.88 to
Clearance Sale!