O.S. Engines

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

Filter

Clear Filters

957-980 of 1,605 Results

Choke Valve: 120-300

$31.52

Connecting Rod: 35-40FP, 40 LA

$21.10

Cover Plate: FS155A-P

$6.61 ~~Price reduced from $22.04 to~~

Clearance Sale! ⓘ

Cylinder Head: 65AX

$44.22

Cylinder Liner: 95AX

$88.92

Bubbleless Clunk

$21.04

Carburetor Reed Valve Gasket: GT33

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

Clearance Sale! ⓘ

Intake Manifold Set: Sirius 7

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

Clearance Sale! ⓘ

Needle Holder #7H #7M #7L

$11.80

O-Ring PRC: 120Surpass

$6.49

Piston Pin Retainer: 81VR-M

$6.49

Piston Pin Retainer: GT33

$7.46

Piston Pin: 32SX-H

$11.91

Pushrods: 56FS-a

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

Clearance Sale! ⓘ

Thrust Washer Rear 30Wankel

$6.49

Valve Spring Retainer: 90-300

$6.49

Woodruff Key: 108-300

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

Clearance Sale! ⓘ

Valve Spring Exhaust: FS-120 Surpass

$6.49

Crankcase: 55AX

$67.24

Crankcase: Sirius 7

$432.78

Cylinder Head: 46AXII

$25.19

Valve Adjustment Kit: 4-Stroke

$15.78

Exhaust Pipe: 40-300

$11.84

Head Gasket: GT33

$14.84