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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505-528 of 1,808 Results
Cover Plate: R21 Cover Plate: R21
4 out of 5 Customer Rating
Cover Plate: R21
$22.04
Crankshaft: 18TM Crankshaft: 18TM
5 out of 5 Customer Rating
Crankshaft: 18TM
$55.14
Crankshaft: Speed B2102 Crankshaft: Speed B2102
5 out of 5 Customer Rating
Crankshaft: Speed B2102
$193.70
Cylinder & Piston: 21XZ-B Cylinder & Piston: 21XZ-B
4.4 out of 5 Customer Rating
Cylinder & Piston: 21XZ-B
$165.99
Outer Head: B2102 Speed Outer Head: B2102 Speed
3.6 out of 5 Customer Rating
Outer Head: B2102 Speed
$102.52
O.S. Outer Head Speed B2103 Type R & Type S O.S. Outer Head Speed B2103 Type R & Type S
5 out of 5 Customer Rating
O.S. Outer Head Speed B2103 Type R & Type S
$102.47
Carburetor 61G: 91HZ-R Speed 3D 3C Carburetor 61G: 91HZ-R Speed 3D 3C
5 out of 5 Customer Rating
Carburetor 61G: 91HZ-R Speed 3D 3C
$303.60
M2003SC 70mm Manifold, Top Speed, On-Road M2003SC 70mm Manifold, Top Speed, On-Road
5 out of 5 Customer Rating
M2003SC 70mm Manifold, Top Speed, On-Road
$67.39
T-2060SC WN Tuned Pipe T-2060SC WN Tuned Pipe
3.6 out of 5 Customer Rating
T-2060SC WN Tuned Pipe
$152.41
Carburetor Body: 22B2, 21XZ-B Ver2 Carburetor Body: 22B2, 21XZ-B Ver2
5 out of 5 Customer Rating
Carburetor Body: 22B2, 21XZ-B Ver2
$79.99
Crankshaft: 21XR-B Version II Crankshaft: 21XR-B Version II
4.8 out of 5 Customer Rating
Crankshaft: 21XR-B Version II
$62.78
Cylinder & Piston Assembly: 12TG Cylinder & Piston Assembly: 12TG
4.8 out of 5 Customer Rating
Cylinder & Piston Assembly: 12TG
$78.15
Inner Head: 21XZ-B Speed Inner Head: 21XZ-B Speed
5 out of 5 Customer Rating
Inner Head: 21XZ-B Speed
$52.99
Outer Head: R2101 Speed Outer Head: R2101 Speed
3.4 out of 5 Customer Rating
Outer Head: R2101 Speed
$102.35
Head Gasket: 28XZ Head Gasket: 28XZ
3.6 out of 5 Customer Rating
Head Gasket: 28XZ
$7.46
Insulator, 20K: L, C Insulator, 20K: L, C
4.4 out of 5 Customer Rating
Insulator, 20K: L, C
$19.14
Universal Nipple #12 Universal Nipple #12
5 out of 5 Customer Rating
Universal Nipple #12
$6.49
Locknut Nozzle #2BK Locknut Nozzle #2BK
5 out of 5 Customer Rating
Locknut Nozzle #2BK
$8.66
Needle Holder 12F-B: 12XZ Speed Spec 3 Needle Holder 12F-B: 12XZ Speed Spec 3
5 out of 5 Customer Rating
Needle Holder 12F-B: 12XZ Speed Spec 3
$19.14
Rear Adapter Fixing Screws (10): 21TM Rear Adapter Fixing Screws (10): 21TM
5 out of 5 Customer Rating
Rear Adapter Fixing Screws (10): 21TM
$7.46
Cover Plate: FSa-56II Cover Plate: FSa-56II
4.9 out of 5 Customer Rating
Cover Plate: FSa-56II
$19.31
Crankcase: 50SX-H Crankcase: 50SX-H
3.1 out of 5 Customer Rating
Crankcase: 50SX-H
$67.24
Crankshaft: 75AX Crankshaft: 75AX
3.7 out of 5 Customer Rating
Crankshaft: 75AX
$66.04
Crankshaft: FS155A-P Crankshaft: FS155A-P
4.1 out of 5 Customer Rating
Crankshaft: FS155A-P
$109.12
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