O.S. Engines

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

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1,293-1,316 of 1,605 Results

Bubbleless Clunk

$21.04

Carburetor Gasket: 200 Surpass

$7.46

Carburetor Reed Valve Gasket: GT33

$3.28 ~~Price reduced from $10.94 to~~

Clearance Sale! ⓘ

Gear Holder Screw: 30 Wankel Rotary

$8.43

Intake Manifold Set: Sirius 7

$8.84 ~~Price reduced from $29.48 to~~

Clearance Sale! ⓘ

Needle Holder #7H #7M #7L

$11.80

Piston Pin Retainer: 81VR-M

$6.49

O-Ring PRC: 120Surpass

$6.49

Piston Pin Retainer: GT33

$7.46

Piston: GT22

$63.22

Piston Pin: 32SX-H

$11.91

Pushrods: 56FS-a

$2.80 ~~Price reduced from $9.49 to~~

Clearance Sale! ⓘ

Screw Set (12): 108FSR

$17.16

Thrust Washer Rear 30Wankel

$6.49

Valve Spring Retainer: 90-300

$6.49

Valve Spring Exhaust: FS-120 Surpass

$6.49

Woodruff Key: 108-300

$2.55 ~~Price reduced from $8.49 to~~

Clearance Sale! ⓘ

Motor Mount: OMA-38 Series

$15.99

Crankcase: 55AX

$67.24

Crankcase: 56 FS

$57.96

Crankcase: Sirius 7

$432.78

Cylinder Head: 46AXII

$25.19

Valve Adjustment Kit: 4-Stroke

$15.78

Exhaust Pipe: 40-300

$11.84