O.S. Engines

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

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433-456 of 1,605 Results

Crankshaft: FS-62V

$66.17

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

$11.72

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~~

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Carburetor Gasket: GT60

$10.94

Master Connecting Rod Assembly: Sirius 7

$87.29

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

Rocker Arm Assembly: FS-70 Ultimate

$26.99

Pushrod: FT-160

$9.44

Rocker Arm Assembly: 120 300

$32.56

Rocker Arm: FS-40-48S

$25.44

Standoff 5x12.7mm 1/2" (4): GT55

$29.49

Complete Carburetor Assembly: (61T2) O.S. FS-64V

$153.99

Valve Intake: FS-91 Surpass

$34.86

Valve Spring: 56 FS

$6.49

Bearing L-1050ZZ

$17.99

Propeller Shaft Set: 3815-1000

$9.29 ~~Price reduced from $30.99 to~~

Clearance Sale! ⓘ