O.S. Engines
Quality and performance has made O.S. the standard in RC engines for over 80 years.
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Piston: 50SX-H
$37.80
Prop Nut 1/4 20-61
$6.49Clearance Sale!
Clearance Sale!
Intake Manifold: 56 FS
$19.14
Spinner Nut: 60-91
$15.78
Rear Bearing: 61-300
$22.16Clearance Sale!
Crankcase: T1201 Speed
$87.17
Crankshaft: 18TZ-TX
$60.65
Clearance Sale!
Heat Sink Head: 21TM
$80.41
Fuel Nipple: #20A, B
$10.86
Gasket Set: 25XZ
$7.99