O.S. Engines

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

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Cam Cover: FS-40 Surpass

$9.44

Connecting Rod: 91SX-H Complete

$27.48

Needle #40N

$13.78

Woodruff Key: 61S RFH

$7.46

Cylinder & Piston: B21 Speed Adam Drake

$188.33

Spring Choke Friction: WLA-2, GT55

$5.99

M2002SC 80mm Manifold: 21XZ-B, 21VZ-B, 25XZ, 30VG

$67.39

Dust Cover: 18TM

$9.85

Cylinder Head: 46AXII

$25.19

Carburetor 61C: 95AX

$97.80

Crankcase: GF30

$48.89 ~~Price reduced from $162.95 to~~

Clearance Sale! ⓘ

Piston Ring: 60-61

$26.24

Piston Pin: 21XZ-R

$9.85

Ball Link No.5 18TM

$16.09

Rear Bearing: FS120 III

$10.08 ~~Price reduced from $33.61 to~~

Clearance Sale! ⓘ

M10 In-Cowl Exhaust Header Pipe Inverted 80D: FS56A

$36.85

Piston Pin: 91RZ-H Ring Heli

$11.99

P5 Turbo Glow Very Hot Plug Off-Road

$18.99

Cover Plate: FS-120 III

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

Clearance Sale! ⓘ

Rear Cover: Sirius 7

$87.53 ~~Price reduced from $173.36 to~~

Clearance Sale! ⓘ

Cylinder Head: FS155A-P

$114.61

Cylinder Jacket: Sirius 7

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

Clearance Sale! ⓘ

Intake Manifold Assembly: FT-240/300

$54.99

Dust Cover: 30VG

$11.91