O.S. Engines

Quality and performance has made O.S. the standard in RC engines for over 80 years.

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505-528 of 1,605 Results

Piston: 105HZ

$92.46

Piston Ring: 46SF H

$26.24

Pushrod: FS-91 Surpass

$9.44

Rotor Guide Washer: 40L, 55HZ Hyper

$3.28 ~~Price reduced from $10.94 to~~

Clearance Sale! ⓘ

Valve: FS-95V

$25.44

F-4051 Silencer: O.S. FS-64V

$57.99

Cylinder Brass Head Gasket: 75AX

$6.49

Cir Clip In-Flight Needle Valve

$6.49

Connecting Rod: 50SX-H

$25.44

Connecting Rod: FS155A-P

$14.52 ~~Price reduced from $48.43 to~~

Clearance Sale! ⓘ

Connecting Rod: FS72 Alpha

$26.24

Crankshaft: 91HZ

$91.51

Crankshaft: 240-300

$284.01

Cylinder Head: 25FX

$16.09

Cylinder Head: 91HZR

$99.54

Drive Washer: FF-240, 320

$38.84

Exhaust Pipe Assembly: 40-300

$15.76

Front Housing: GT60

$87.18

Cover Plate Gasket: 55HZ Hyper

$6.49

Intake Pipe Right: FT-120 160

$6.71 ~~Price reduced from $22.37 to~~

Clearance Sale! ⓘ

Muffler Assembly Screw: F6020 FS155A-P

$9.85

Prop Washer: GT55

$9.85

Regulator Assembly: 91HZR

$124.95

Rocker Arm: F61-300

$27.29