O.S. Engines

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

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429-452 of 1,605 Results

Exhaust Valve Assembly: 200 Surpass

$44.22

Intake Valve: 56 FS

$5.72 ~~Price reduced from $19.05 to~~

Clearance Sale! ⓘ

Valve Spring: 20-300

$6.49

Prop Shaft: OMA-50 Series

$10.49 ~~Price reduced from $34.99 to~~

Clearance Sale! ⓘ

Cover Plate with BPS-1 Mount: 55HZ-R

$11.72

Crankcase: FS155A-P

$174.52

Crankshaft: FS-62V

$66.17

Crankshaft: GF40

$193.59

Cylinder Head: FS-120 Surpass III

$97.80

Cylinder Jacket: Sirius 7

$35.01 ~~Price reduced from $97.71 to~~

Clearance Sale! ⓘ

Cylinder Liner: 61SX WX

$80.99

Exhaust Pipe Assembly: FF-240

$10.50 ~~Price reduced from $22.24 to~~

Clearance Sale! ⓘ

Carburetor Gasket: GT60

$10.94

Master Connecting Rod Assembly: Sirius 7

$87.29

Needle Ext Cable: FR5 300

$8.49

Pilot Shaft: GT55

$29.56

Piston: 91HZ

$91.99

Piston Pin: GF30

$6.33 ~~Price reduced from $21.10 to~~

Clearance Sale! ⓘ

Piston Ring: 108FSR

$29.60

Piston Ring: GT15HZ

$29.60

Pushrod Cover: FS-95V

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

Clearance Sale! ⓘ

Pushrod: FT-160

$9.44

Rocker Arm Assembly: FS-70 Ultimate

$26.99

Rocker Arm Assembly: 120 300

$32.56