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
$839.99
Steering Arm: 21XM
$13.75Clearance Sale!
Upper Arm: 21XM
$22.24Clearance Sale!
Inner Head: 21XZ-R
$52.69
Prop Shaft: 21XM
$57.74
Mount Plate: 21XM
$22.24
Front Bearing: 21RZ-B
$27.29
Cover Plate: 21XZ-B
$22.04
Carburetor Body: #40A
$47.99
Lower Unit: 21XM
$100.94
Needle Assembly #40A
$22.04