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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841-864 of 1,605 Results
Carburetor 21J3-1: 21XR-B Version II Carburetor 21J3-1: 21XR-B Version II
5 out of 5 Customer Rating
$162.87
Carburetor Reducer AL2 5.5mm, Red: Speed T1202 Carburetor Reducer AL2 5.5mm, Red: Speed T1202
5 out of 5 Customer Rating
$21.10
Crankshaft: O.S.SPEED R21GT2 Crankshaft: O.S.SPEED R21GT2
3.8 out of 5 Customer Rating
$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
$26.16 Price reduced from $87.19 to
Clearance Sale!
Connecting Rod: 18TM Connecting Rod: 18TM
4.8 out of 5 Customer Rating
$48.51
Cylinder Rebuild Kit: R21 Cylinder Rebuild Kit: R21
4.4 out of 5 Customer Rating
$188.45
Inner Head: R2101 Speed Inner Head: R2101 Speed
4 out of 5 Customer Rating
$52.69
Outer Head: 21XZ-R Outer Head: 21XZ-R
4.8 out of 5 Customer Rating
$69.99
LC3 T-Maxx Revo Glow Plug Hot LC3 T-Maxx Revo Glow Plug Hot
4.2 out of 5 Customer Rating
$11.99
Carburetor Rotor: 40L-R, 55HZ-R Carburetor Rotor: 40L-R, 55HZ-R
4.8 out of 5 Customer Rating
$39.91
Cylinder Rebuild Kit: B21 Speed Adam Drake Cylinder Rebuild Kit: B21 Speed Adam Drake
3.6 out of 5 Customer Rating
$232.25
Cylinder & Piston B2101 Speed Cylinder & Piston B2101 Speed
5 out of 5 Customer Rating
$193.68
Carburetor #61A: 75AX Carburetor #61A: 75AX
4.5 out of 5 Customer Rating
$97.80
Mid Bearing: 120-240 Mid Bearing: 120-240
5 out of 5 Customer Rating
$32.99
Plug Cable: Sirius 7 Plug Cable: Sirius 7
3.1 out of 5 Customer Rating
$10.94
Carburetor Body: #20H Carburetor Body: #20H
3.7 out of 5 Customer Rating
$19.14
Carburetor Insert: #9B Carburetor Insert: #9B
4.1 out of 5 Customer Rating
$7.99
Carburetor Retainer: #61B, 91HZ Carburetor Retainer: #61B, 91HZ
5 out of 5 Customer Rating
$13.78
Choke Valve: 120-300 Choke Valve: 120-300
4.7 out of 5 Customer Rating
$31.52
Connecting Rod: 35-40FP, 40 LA Connecting Rod: 35-40FP, 40 LA
4.7 out of 5 Customer Rating
$21.10
Crankshaft: 15LA Crankshaft: 15LA
5 out of 5 Customer Rating
$23.22
Cover Plate: FS155A-P Cover Plate: FS155A-P
5 out of 5 Customer Rating
$6.61 Price reduced from $22.04 to
Clearance Sale!
Crankshaft: 120AX Crankshaft: 120AX
4.1 out of 5 Customer Rating
$80.37
Cylinder Head: 65AX Cylinder Head: 65AX
5 out of 5 Customer Rating
$44.22