O.S. Engines

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

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193-216 of 1,755 Results

Mixture Control Valve: 61ER

$8.84 ~~Price reduced from $29.49 to~~

Clearance Sale! ⓘ

Exhaust Header Pipe Assembly F-4050: FS-62V

$14.84

Throttle Lever #2CK

$6.49

Intake Valve: 56 FS

$19.05

Valve Spring: 20-300

$6.49

Prop Shaft: OMA-50 Series

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

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Crankshaft: FS-62V

$66.17

Crankshaft: GF40

$193.59

Cylinder Head: FS-120 Surpass III

$97.80

Cylinder Jacket: Sirius 7

$97.71

Cylinder Liner: 61SX WX

$80.99

Carburetor Gasket: GT60

$10.94

Master Connecting Rod Assembly: Sirius 7

$87.29

Piston Pin: GF30

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

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Pushrod: FT-160

$9.44

Rocker Arm Assembly: FS-70 Ultimate

$26.99

Rocker Arm Assembly: 120 300

$32.56

Rocker Arm: FS-40-48S

$25.44

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

$153.99

Valve Intake: FS-91 Surpass

$34.86

Main Shaft: 3805-1200

$8.99

80 Degree Exhaust Header: 155FS-a

$48.43

Air Bleed Screw: #10G

$6.49

Carburetor Reducer 6.5mm, Blue Aluminum

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

Clearance Sale! ⓘ