O.S. Engines

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

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Under Cover: IL-300 Dia-Star

$16.81

Rocker Cover Gasket: GF40

$10.94

Head Gasket: 56 FS

$6.49

Ignition Module IG-02: GT33

$104.01

Cover Plate: 200 Surpass

$22.30

Lever Metering WLA-2: GT55

$11.87

Nozzle: 15FP-S RN

$9.85

Piston: 50SX-H

$37.80

Piston Pin: 160FX

$19.14

Rocker Arm Assembly: 200 Surpass

$11.05 ~~Price reduced from $36.85 to~~

Clearance Sale! ⓘ

Screw Set (10): 46AX 55AX

$10.86

Throttle Arm Assembly: 40L, 55HZ Hyper

$7.46

Valve Spring: FS-70 91SII

$6.49

Stator Assembly: 5025-375 .50

$27.90 ~~Price reduced from $92.99 to~~

Clearance Sale! ⓘ

Motor Mount: FS91SII, FS110 Pump

$44.22

Intake Manifold: 56 FS

$19.14

Rear Bearing: 61-300

$22.16

Carburetor Screw: FS61-FT300

$6.49

Crankcase: T1201 Speed

$87.17

Crankshaft: 18TZ-TX

$60.65

Crankshaft: 91HZ-R Speed 3D 3C

$102.54

Cylinder & Piston: B21 Speed Adam Drake

$188.33

Outer Head: Speed 21XZ-GT

$30.76 ~~Price reduced from $102.52 to~~

Clearance Sale! ⓘ

Heat Sink Head: 21TM

$80.41