O.S. Engines

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

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1,365-1,388 of 1,605 Results

Cam Holder: Sirius 7

$48.41

Cam Cover: FS-40 Surpass

$9.44

Carburetor Screw: #103A2A

$6.49

Connecting Rod Plate: GGT10

$6.68 ~~Price reduced from $22.26 to~~

Clearance Sale! ⓘ

Cover Plate: 56 FS

$15.76

Cover Plate: FS72 Alpha

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

Clearance Sale! ⓘ

Crankcase: GGT10

$104.09

Cover Plate: 91SZ-H

$20.99

Cylinder Head: FS81 Alpha

$76.86

Crankshaft: 25AX

$43.99

Cylinder Head: FS155A-P

$114.61

Cylinder Jacket: IL-300 Dia-Star

$162.95

Cylinder Liner: 55HZ Hyper

$64.39

Cylinder Liner: FS72 Alpha

$43.02

Drive Hub: 140RX

$26.24

Drive Spacer: GT60

$38.03

Gasket Set: 50SX-H

$8.43

Carburetor Spacer: Sirius 7

$3.26 ~~Price reduced from $10.86 to~~

Clearance Sale! ⓘ

Intake Cam: Sirius 7

$21.11 ~~Price reduced from $70.37 to~~

Clearance Sale! ⓘ

Link Pin: Sirius 7

$3.54 ~~Price reduced from $11.80 to~~

Clearance Sale! ⓘ

Locknut: GT33

$17.16

Muffler Screws #871 (2)

$6.49

Needle Assembly: FT-120-300

$19.05

Needle 25 2SX: 61FX

$13.78