O.S. Engines
Quality and performance has made O.S. the standard in RC engines for over 80 years.
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Needle Assembly 21-120
$15.99
O-Ring Set #60B
$2.53$5.99
Prop Shaft: 21XM
$63.99
Cover Plate: 21XZ-B
$8.99
Arm Shaft Assembly: 21XM
$11.99
Lower Arm: 21XM
$14.99
Needle Assembly #40A
$15.99
Steering Arm: 21XM
$11.99
Head Gasket: 30VG
$6.99