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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553-576 of 1,808 Results
Valve Spring Retainer: 120Surpass Valve Spring Retainer: 120Surpass
3.7 out of 5 Customer Rating
Valve Spring Retainer: 120Surpass
$8.49
Valve Spring: GF40 Valve Spring: GF40
5 out of 5 Customer Rating
Valve Spring: GF40
$9.46
Carburetor #10G: 15LA Carburetor #10G: 15LA
5 out of 5 Customer Rating
Carburetor #10G: 15LA
$25.29
Muffler Extension: #762 Muffler Extension: #762
3.3 out of 5 Customer Rating
Muffler Extension: #762
$16.09
Intake Manifold Assembly B: IL-300 Intake Manifold Assembly B: IL-300
5 out of 5 Customer Rating
Intake Manifold Assembly B: IL-300
$22.37
Rear Bearing: 40-50 Rear Bearing: 40-50
4.1 out of 5 Customer Rating
Rear Bearing: 40-50
$26.34
Carburetor Body: #60Y, FS110A Carburetor Body: #60Y, FS110A
3.3 out of 5 Customer Rating
Carburetor Body: #60Y, FS110A
$42.11
Carburetor: #80N, FS200S Carburetor: #80N, FS200S
4.7 out of 5 Customer Rating
Carburetor: #80N, FS200S
$97.90
Carburetor Rotor: #60K Carburetor Rotor: #60K
5 out of 5 Customer Rating
Carburetor Rotor: #60K
$34.99
Carburetor Rotor: #40E Carburetor Rotor: #40E
3.3 out of 5 Customer Rating
Carburetor Rotor: #40E
$22.99
Carburetor Rotor: 70T, GF30 Carburetor Rotor: 70T, GF30
4.7 out of 5 Customer Rating
Carburetor Rotor: 70T, GF30
$63.12
Connecting Rod: 120AX Connecting Rod: 120AX
4.3 out of 5 Customer Rating
Connecting Rod: 120AX
$36.85
50SX-H Hyper Ringed .50 Helicopter Engine 50SX-H Hyper Ringed .50 Helicopter Engine
5 out of 5 Customer Rating
50SX-H Hyper Ringed .50 Helicopter Engine
$311.16
Inner Head O-Ring: (S-32)(Black) B2104 Inner Head O-Ring: (S-32)(Black) B2104
4.9 out of 5 Customer Rating
Inner Head O-Ring: (S-32)(Black) B2104
$10.70
Carburetor Reducer 8mm, Red: 21VZB (P) V-Spec Carburetor Reducer 8mm, Red: 21VZB (P) V-Spec
3.7 out of 5 Customer Rating
Carburetor Reducer 8mm, Red: 21VZB (P) V-Spec
$11.80
Front Crankshaft Bearing: Speed T1202 Front Crankshaft Bearing: Speed T1202
5 out of 5 Customer Rating
Front Crankshaft Bearing: Speed T1202
$22.04
Carburetor: #11G Slide, 18CVR Carburetor: #11G Slide, 18CVR
3.3 out of 5 Customer Rating
Carburetor: #11G Slide, 18CVR
$87.29
Cover Plate: B2101 Speed Cover Plate: B2101 Speed
3.7 out of 5 Customer Rating
Cover Plate: B2101 Speed
$25.44
Crankcase: B2101 Speed Crankcase: B2101 Speed
5 out of 5 Customer Rating
Crankcase: B2101 Speed
$152.45
Crankcase: 21XR-B Version II Crankcase: 21XR-B Version II
4.5 out of 5 Customer Rating
Crankcase: 21XR-B Version II
$71.54
O.S. Outer Head Speed B2103 Type R O.S. Outer Head Speed B2103 Type R
5 out of 5 Customer Rating
O.S. Outer Head Speed B2103 Type R
$102.47
Inner Head: 28XZ Inner Head: 28XZ
5 out of 5 Customer Rating
Inner Head: 28XZ
$57.86
Dust Cap Set, 3mm (5) & Carburetor Nipple Dust Cap Set, 3mm (5) & Carburetor Nipple
4.7 out of 5 Customer Rating
Dust Cap Set, 3mm (5) & Carburetor Nipple
$9.85
Gasket Head, .2mm: 105HZ Gasket Head, .2mm: 105HZ
4.1 out of 5 Customer Rating
Gasket Head, .2mm: 105HZ
$7.46
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