O.S. Engines

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

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Carburetor: #11KR Slide, 21TM-R Revo

$92.46

O.S. Crankcase OS Speed R21GT

$185.04

Outer Head: T1202 Speed

$30.74 ~~Price reduced from $102.46 to~~

Clearance Sale! ⓘ

Outer Head: 12XZ Speed Spec II

$79.99

Rear Adapter: 15CV-X

$16.09

Screw Set (10): 21VZ-R VZB

$9.85

Carb Reducer 5.8MM Natural TYII

$20.05

Muffler Extension Adapter 12 20mm: 49PI

$27.29

Plug Cable Set: Sirius 7

$16.09

Cam Cover: FS72 Alpha

$11.91

Cam Cover: FS-95V

$11.95

WLA-2 Screw: 96-603, GT15HZ

$6.49

Connecting Rod: FL-70

$21.10

Rear Cover: Sirius 7

$87.53 ~~Price reduced from $173.36 to~~

Clearance Sale! ⓘ

Crankshaft: 120AX Special

$102.45

Cylinder & Piston: 15LA

$33.18

Cylinder Head & Valve: FT-160

$135.63

Drive Washer: T-120 160

$10.50 ~~Price reduced from $29.60 to~~

Clearance Sale! ⓘ

Cover Gasket: S42, GT22

$7.46

Carburetor Gasket Set: WLA-2 (3)

$5.15 ~~Price reduced from $17.16 to~~

Clearance Sale! ⓘ

Thermo Insulator: GT15HZ

$10.94

Ignition Module IG-06: GT15

$97.70

Needle #40D

$9.85

Nozzle Screw: FS-40

$6.49