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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1,664-1,687 of 1,808 Results
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 #21E Slide: 30VG Series Carburetor #21E Slide: 30VG Series
5 out of 5 Customer Rating
Carburetor #21E Slide: 30VG Series
$119.86
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
Cylinder & Piston Assembly: 25XZ Cylinder & Piston Assembly: 25XZ
5 out of 5 Customer Rating
Cylinder & Piston Assembly: 25XZ
$159.99
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
Carburetor Complete #40NA: 56FS Carburetor Complete #40NA: 56FS
5 out of 5 Customer Rating
Carburetor Complete #40NA: 56FS
$87.19
Carburetor Complete WT1054: GT22 Carburetor Complete WT1054: GT22
5 out of 5 Customer Rating
Carburetor Complete WT1054: GT22
$184.94
Muffler Extension: 761, 871 Muffler Extension: 761, 871
5 out of 5 Customer Rating
Muffler Extension: 761, 871
$16.09
Radial Mount Screw Set: Sirius 7 Radial Mount Screw Set: Sirius 7
5 out of 5 Customer Rating
Radial Mount Screw Set: Sirius 7
$15.76
Carburetor Body: #10G Carburetor Body: #10G
5 out of 5 Customer Rating
Carburetor Body: #10G
$17.16
Connecting Rod: GT22 Connecting Rod: GT22
5 out of 5 Customer Rating
Connecting Rod: GT22
$57.87
Cover Plate Assembly: 25FX Cover Plate Assembly: 25FX
4.8 out of 5 Customer Rating
Cover Plate Assembly: 25FX
$29.49
Cover Plate: 46AXII Cover Plate: 46AXII
5 out of 5 Customer Rating
Cover Plate: 46AXII
$11.80
Cover Plate: 35AX Cover Plate: 35AX
4.4 out of 5 Customer Rating
Cover Plate: 35AX
$11.80
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