O.S. Engines
Quality and performance has made O.S. the standard in RC engines for over 80 years.
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O.S. SPEED R21GT2 Combo Set
$959.99
O.S. Speed R21GT2
$839.99
Drive Shaft Nut: 21XM
$11.87
Flex Shaft Housing: 21XM
$10.86
Rear Housing: 21XM
$52.65
Screw Set (10): 21XM
$11.75
Prop Nut: 21XM
$6.49
Mount Plate: 21XM
$22.24
Needle #4BK #2K
$13.78
Low Unit Screw (4): 21XM
$10.86
Needle Assembly 21-120
$22.04
Cover Plate: 21XZ-B
$22.04
Crankcase: 21XM
$125.10
Needle Assembly #40A
$22.04
Prop Shaft: 21XM
$57.74
Side Plate: 21XM
$22.24