O.S. Engines
Quality and performance has made O.S. the standard in RC engines for over 80 years.
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Clearance Sale!
Clearance Sale!
Connecting Rod: 120AX
$36.85
Crankcase: B2101 Speed
$152.45Clearance Sale!
Carburetor Body: 21JN
$79.99
Crankcase: 25LA Natural
$34.86
Drive Washer: 12TR
$7.46Clearance Sale!
Front Bearing: 40-240
$21.17
Choke Valve: WLA-2, GT55
$14.99
Cylinder Liner: FS110A
$49.46
Needle Assembly #7H #7F
$22.04
Needle #40N
$13.78
Clearance Sale!
Cover Plate: GF30 II
$44.17
Motor Mount: 25LA
$25.29