O.S. Engines
Quality and performance has made O.S. the standard in RC engines for over 80 years.
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Cylinder Rebuild Kit: R21
$188.45
Clearance Sale!
Clearance Sale!
Cover Plate: FS91-P
$21.10
Carburetor 70R: FS155A-P
$157.70
Carburetor: GT15HZ
$190.20
Muffler Extension: #744B
$19.05
Muffler Extension: #842
$11.72
Outer Head: 19XZ-B Speed
$102.20
Inner Head: R2101 Speed
$52.69
Clearance Sale!
Rear Cover Plate: GT22
$30.44
Cover Plate: GT55
$41.99
Inner Head: 21XZ-B
$52.99
Clearance Sale!
103 Air Cleaner Body
$10.99