O.S. Engines

Quality and performance has made O.S. the standard in RC engines for over 80 years.
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25-48 of 1773 Results
O.S. SPEED R21GT2 Combo Set
$959.99O.S. Speed R21GT2
$839.99Rear Housing: 21XM
$52.65Drive Shaft: 21XM
$46.43Screw Set CZ-M (8)
$9.85Low Unit Screw (4): 21XM
$10.86Screw Set CZ-MX (8)
$7.46Crankcase: 18CV-R
$52.52