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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1,129-1,152 of 1,812 Results
Needle Valve Assembly #11H #11HB Needle Valve Assembly #11H #11HB
3.6 out of 5 Customer Rating
Needle Valve Assembly #11H #11HB
$27.29
Rotor Spring #2CK #2B Rotor Spring #2CK #2B
5 out of 5 Customer Rating
Rotor Spring #2CK #2B
$6.49
Slide Valve 12D: 18TM Slide Valve 12D: 18TM
5 out of 5 Customer Rating
Slide Valve 12D: 18TM
$32.56
Throttle Lever #2B #2CB Throttle Lever #2B #2CB
5 out of 5 Customer Rating
Throttle Lever #2B #2CB
$6.49
Crankcase: O.S. Max .12 TG Version 4 Crankcase: O.S. Max .12 TG Version 4
3.8 out of 5 Customer Rating
Crankcase: O.S. Max .12 TG Version 4
$54.76
Outer Head: O.S. Speed B21 Pink Rhonda Drake Edition Outer Head: O.S. Speed B21 Pink Rhonda Drake Edition
4.6 out of 5 Customer Rating
Outer Head: O.S. Speed B21 Pink Rhonda Drake Edition
$111.25
Carburetor 21J3-1: 21XR-B Version II Carburetor 21J3-1: 21XR-B Version II
5 out of 5 Customer Rating
Carburetor 21J3-1: 21XR-B Version II
$162.87
Carburetor Reducer AL2 5.5mm, Red: Speed T1202 Carburetor Reducer AL2 5.5mm, Red: Speed T1202
5 out of 5 Customer Rating
Carburetor Reducer AL2 5.5mm, Red: Speed T1202
$21.10
Crankshaft: O.S.SPEED R21GT2 Crankshaft: O.S.SPEED R21GT2
3.8 out of 5 Customer Rating
Crankshaft: O.S.SPEED R21GT2
$249.99
O.S. Carburetor Body 22E (B) Speed B2103 Type R O.S. Carburetor Body 22E (B) Speed B2103 Type R
5 out of 5 Customer Rating
O.S. Carburetor Body 22E (B) Speed B2103 Type R
$87.19
Connecting Rod: 18TM Connecting Rod: 18TM
4.8 out of 5 Customer Rating
Connecting Rod: 18TM
$48.51
Cylinder Rebuild Kit: R21 Cylinder Rebuild Kit: R21
4.4 out of 5 Customer Rating
Cylinder Rebuild Kit: R21
$188.45
Cylinder Assembly Rebuild Kit: 21XZ-R VII Cylinder Assembly Rebuild Kit: 21XZ-R VII
4.8 out of 5 Customer Rating
Cylinder Assembly Rebuild Kit: 21XZ-R VII
$276.13
Cylinder Piston Assembly: R21 Cylinder Piston Assembly: R21
4.4 out of 5 Customer Rating
Cylinder Piston Assembly: R21
$132.77
O.S. Outer Head OS Speed R21GT O.S. Outer Head OS Speed R21GT
4.4 out of 5 Customer Rating
O.S. Outer Head OS Speed R21GT
$132.29
Inner Head: R2101 Speed Inner Head: R2101 Speed
4 out of 5 Customer Rating
Inner Head: R2101 Speed
$52.69
Outer Head: 21XZ-R Outer Head: 21XZ-R
4.8 out of 5 Customer Rating
Outer Head: 21XZ-R
$69.99
Outer Head O.S.Speed B21 Adam Drake II Outer Head O.S.Speed B21 Adam Drake II
4.8 out of 5 Customer Rating
Outer Head O.S.Speed B21 Adam Drake II
$107.98
T-2080 C-Ring T-2080 C-Ring
3.6 out of 5 Customer Rating
T-2080 C-Ring
$9.19
Carburetor Rotor: 40L-R, 55HZ-R Carburetor Rotor: 40L-R, 55HZ-R
4.8 out of 5 Customer Rating
Carburetor Rotor: 40L-R, 55HZ-R
$39.91
Cylinder Rebuild Kit: 21XZ-GT Speed Cylinder Rebuild Kit: 21XZ-GT Speed
4.4 out of 5 Customer Rating
Cylinder Rebuild Kit: 21XZ-GT Speed
$221.55
Cylinder & Piston B2101 Speed Cylinder & Piston B2101 Speed
5 out of 5 Customer Rating
Cylinder & Piston B2101 Speed
$193.68
Outer Head: O.S. Speed R2104 Outer Head: O.S. Speed R2104
3.6 out of 5 Customer Rating
Outer Head: O.S. Speed R2104
$148.60
Cover Plate: FSa-56II Cover Plate: FSa-56II
4.9 out of 5 Customer Rating
Cover Plate: FSa-56II
$19.31
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