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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385-408 of 1,808 Results
T-2090SC Tune Pipe Set: 21XZ-B, 21VZ-B, 25XZ, 30VG T-2090SC Tune Pipe Set: 21XZ-B, 21VZ-B, 25XZ, 30VG
5 out of 5 Customer Rating
T-2090SC Tune Pipe Set: 21XZ-B, 21VZ-B, 25XZ, 30VG
$217.45
Connecting Rod: 30VG Connecting Rod: 30VG
5 out of 5 Customer Rating
Connecting Rod: 30VG
$27.48
Crankshaft: 30VG Crankshaft: 30VG
4 out of 5 Customer Rating
Crankshaft: 30VG
$52.99
Cylinder/Piston/Rod: T1201 Speed Cylinder/Piston/Rod: T1201 Speed
5 out of 5 Customer Rating
Cylinder/Piston/Rod: T1201 Speed
$193.94
Cylinder Rebuild Kit: 21XZ-B Spec 2 Cylinder Rebuild Kit: 21XZ-B Spec 2
4 out of 5 Customer Rating
Cylinder Rebuild Kit: 21XZ-B Spec 2
$254.73
Cylinder & Piston: 21VZ-M Cylinder & Piston: 21VZ-M
4.4 out of 5 Customer Rating
Cylinder & Piston: 21VZ-M
$58.82 Price reduced from $168.08 to
Clearance Sale! ⓘ
Cylinder Piston Rod Rebuild Kit: R2103 Speed Cylinder Piston Rod Rebuild Kit: R2103 Speed
5 out of 5 Customer Rating
Cylinder Piston Rod Rebuild Kit: R2103 Speed
$253.61
Outer Head: R21 Outer Head: R21
3.6 out of 5 Customer Rating
Outer Head: R21
$96.84
Inner Head: B2101 Speed Inner Head: B2101 Speed
4.4 out of 5 Customer Rating
Inner Head: B2101 Speed
$57.96
Inner Head: 19XZ-B Speed Inner Head: 19XZ-B Speed
5 out of 5 Customer Rating
Inner Head: 19XZ-B Speed
$57.73
Dust Cap Set: RZ-V P Dust Cap Set: RZ-V P
5 out of 5 Customer Rating
Dust Cap Set: RZ-V P
$7.46
Dust Cap Set: 12-30 Class Dust Cap Set: 12-30 Class
3.6 out of 5 Customer Rating
Dust Cap Set: 12-30 Class
$9.85
Mixture Control Screw #11L Mixture Control Screw #11L
5 out of 5 Customer Rating
Mixture Control Screw #11L
$11.80
Screw Idle Speed WLA-2: GT55 Screw Idle Speed WLA-2: GT55
3.4 out of 5 Customer Rating
Screw Idle Speed WLA-2: GT55
$23.99
Slide Valve 12F2: 12XZ Speed Spec 3 Slide Valve 12F2: 12XZ Speed Spec 3
4 out of 5 Customer Rating
Slide Valve 12F2: 12XZ Speed Spec 3
$33.61
Screw Set (8): 12CV-X Screw Set (8): 12CV-X
5 out of 5 Customer Rating
Screw Set (8): 12CV-X
$7.46
Starting Shaft: 30VG ES Starting Shaft: 30VG ES
5 out of 5 Customer Rating
Starting Shaft: 30VG ES
$22.30
Throttle Stop Screw 22C(B): Speed B2102 Throttle Stop Screw 22C(B): Speed B2102
3.6 out of 5 Customer Rating
Throttle Stop Screw 22C(B): Speed B2102
$11.87
Rear Adapter: 15CV-X Rear Adapter: 15CV-X
3.3 out of 5 Customer Rating
Rear Adapter: 15CV-X
$16.09
Screw Set (10): 21VZ-R VZB Screw Set (10): 21VZ-R VZB
4.7 out of 5 Customer Rating
Screw Set (10): 21VZ-R VZB
$9.85
Carb Reducer 5.8MM Natural TYII Carb Reducer 5.8MM Natural TYII
3.4 out of 5 Customer Rating
Carb Reducer 5.8MM Natural TYII
$20.05
Muffler Extension Adapter 12 20mm: 49PI Muffler Extension Adapter 12 20mm: 49PI
4 out of 5 Customer Rating
Muffler Extension Adapter 12 20mm: 49PI
$27.29
Muffler Power Box: 120AX Muffler Power Box: 120AX
5 out of 5 Customer Rating
Muffler Power Box: 120AX
$71.53
Plug Cable Set: Sirius 7 Plug Cable Set: Sirius 7
5 out of 5 Customer Rating
Plug Cable Set: Sirius 7
$16.09
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