O.S. Engines
Quality and performance has made O.S. the standard in RC engines for over 80 years.
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Cavitation Plt: 21XM
$22.24
Needle Assembly #40A
$22.04
Mount Plate: 21XM
$22.24
Lower Arm: 21XM
$21.06
Screw Set (10): 21XM
$11.75
Prop Washer: 40LA
$6.49
Clearance Sale!
Clearance Sale!
Carburetor Rotor: #11J
$29.60Clearance Sale!
Screw Set 21-32 (10)
$9.85
Rocker Arm: F61-300
$27.29
Ball WLA-2: GT55
$6.99