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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320-343 of 1,808 Results
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
T-2100SC Tuned Pipe T-2100SC Tuned Pipe
3.3 out of 5 Customer Rating
T-2100SC Tuned Pipe
$152.41
Carburetor Body: 21JN Carburetor Body: 21JN
3.7 out of 5 Customer Rating
Carburetor Body: 21JN
$79.99
Crankcase: 25LA Natural Crankcase: 25LA Natural
5 out of 5 Customer Rating
Crankcase: 25LA Natural
$34.86
Crankcase: 21XZ-B Speed Crankcase: 21XZ-B Speed
5 out of 5 Customer Rating
Crankcase: 21XZ-B Speed
$139.99
Crankshaft: Recoil 30VG Crankshaft: Recoil 30VG
4.1 out of 5 Customer Rating
Crankshaft: Recoil 30VG
$66.04
Cylinder & Piston: 12TR (P)-T Cylinder & Piston: 12TR (P)-T
5 out of 5 Customer Rating
Cylinder & Piston: 12TR (P)-T
$75.99
Cylinder & Piston Assembly: 28XZ Cylinder & Piston Assembly: 28XZ
4.1 out of 5 Customer Rating
Cylinder & Piston Assembly: 28XZ
$176.55
Inner Head: speed 21XZ-B Spec III Inner Head: speed 21XZ-B Spec III
3.3 out of 5 Customer Rating
Inner Head: speed 21XZ-B Spec III
$52.69
Drive Washer: 12TR Drive Washer: 12TR
3.3 out of 5 Customer Rating
Drive Washer: 12TR
$7.46
Dust Cover: 18TM Dust Cover: 18TM
3.3 out of 5 Customer Rating
Dust Cover: 18TM
$9.85
Mixture Control Screw: 120 Surpass Mixture Control Screw: 120 Surpass
5 out of 5 Customer Rating
Mixture Control Screw: 120 Surpass
$6.49
Needle High Speed WLA-2: GT55 Needle High Speed WLA-2: GT55
3.1 out of 5 Customer Rating
Needle High Speed WLA-2: GT55
$15.99
Metering Needle 12F2: 12XZ Speed Spec Metering Needle 12F2: 12XZ Speed Spec
4.7 out of 5 Customer Rating
Metering Needle 12F2: 12XZ Speed Spec
$19.14
Metering Needle Assembly: 21VZB (P) V-Spec 21C Metering Needle Assembly: 21VZB (P) V-Spec 21C
5 out of 5 Customer Rating
Metering Needle Assembly: 21VZB (P) V-Spec 21C
$19.14
Pump Body Assembly: WLA-2 GT55 Pump Body Assembly: WLA-2 GT55
4.2 out of 5 Customer Rating
Pump Body Assembly: WLA-2 GT55
$32.99
Radial Mount: Sirius 7 Radial Mount: Sirius 7
5 out of 5 Customer Rating
Radial Mount: Sirius 7
$135.66
Camshaft: FS-91-P Camshaft: FS-91-P
4.8 out of 5 Customer Rating
Camshaft: FS-91-P
$60.72
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