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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721-744 of 1,605 Results
Carburetor: #80N, FS200S Carburetor: #80N, FS200S
4.7 out of 5 Customer Rating
Carburetor: #80N, FS200S
$97.90
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
$18.94 Price reduced from $63.12 to
Clearance Sale! ⓘ
Connecting Rod: 120AX Connecting Rod: 120AX
4.3 out of 5 Customer Rating
Connecting Rod: 120AX
$36.85
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
$21.46 Price reduced from $71.54 to
Clearance Sale! ⓘ
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
Crankshaft: Recoil 30VG Crankshaft: Recoil 30VG
4.1 out of 5 Customer Rating
Crankshaft: Recoil 30VG
$66.04
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
$15.81 Price reduced from $52.69 to
Clearance Sale! ⓘ
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
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
Front Bearing: 40-240 Front Bearing: 40-240
4.2 out of 5 Customer Rating
Front Bearing: 40-240
$21.17
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