O.S. Engines
Quality and performance has made O.S. the standard in RC engines for over 80 years.
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Mount Plate: 21XM
$22.24
Lower Arm: 21XM
$21.06
Clearance Sale!
Clearance Sale!
Connecting Rod: RXB/R/M
$26.24
Low Unit Screw (4): 21XM
$10.86
Flex Shaft Housing: 21XM
$10.86
Arm Shaft Assembly: 21XM
$13.75
Needle #4BK #2K
$13.78Clearance Sale!
Prop Nut: 21XM
$6.49
Prop Shaft: 21XM
$57.74
Screw Set CZ-MX (8)
$7.46
Side Plate: 21XM
$22.24