O.S. Engines

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

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Carburetor 80T: Sirius 7

$52.52 ~~Price reduced from $125.08 to~~

Clearance Sale! ⓘ

E4050 In-Cowl Muffler: 65AX

$67.33

Locknut Set: FT, FR5

$41.12

Cam Cover: 56 FS

$3.57 ~~Price reduced from $11.91 to~~

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Camshaft Bearing: F 120-300

$22.37

Carburetor Body: 37SZ-H

$12.04 ~~Price reduced from $40.12 to~~

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Crankcase: GF30

$48.89 ~~Price reduced from $162.95 to~~

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Cylinder & Piston: 65AX

$138.26

Cylinder Head with Valve: FS-40 Surpass

$87.39

Cylinder Head: GT33

$57.78

Exhaust Pipe Nut: F40-300

$6.49

Gasket Set: 46AX

$11.80

Gasket Carb IP: #10, FR5

$6.49

Cover Plate Gasket: 35AX

$10.94

Gasket Carburetor: 120-240

$6.49

Needle Adj Screw New: #60B

$7.57

Piston Pin Retainer: 40PS

$6.49

Piston Pin: 55HZ Hyper

$10.94

Piston Pin: FS-120

$14.73

Prop Nut: 61-120

$6.49

Prop Washer 10-12

$1.95 ~~Price reduced from $6.49 to~~

Clearance Sale! ⓘ

Needle Assembly Screw: 65LA

$1.95 ~~Price reduced from $6.49 to~~

Clearance Sale! ⓘ

Main Shaft Stopper SET: OMA-50

$7.99

Cover Plate: 15CV-A

$10.99