O.S. Engines
Quality and performance has made O.S. the standard in RC engines for over 80 years.
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Upper Arm: 21XM
$22.24
Screw Set CZ-MX (8)
$7.46
Mount Plate: 21XM
$22.24
Side Plate: 21XM
$22.24
Lower Arm: 21XM
$21.06
Prop Nut: 21XM
$6.49
Front Bearing: 11PS
$22.04
Connecting Rod: RXB/R/M
$26.24
Crankcase: 18CV-R
$52.52
Pre-Order
O.S.SPEED B2105
$752.99
FSa-56II Airplane Engine with F-4040 Silencer
$171.87$449.99
O.S. SPEED R21GT2 Combo Set
$799.99