O.S. Engines

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

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Pushrod Cover Assembly: 120Surpass

$22.04

O-Ring Needle: FS/FX/LA

$8.49

Clearance Sale!

Piston Pin Retainer: GT55 (2)

$2.24$7.46

Clearance Sale!

Piston Pin Retainer: 50SX-H

$7.46

Gasket Carburetor: 61-108

$6.49

Gasket Carburetor: #60B

$6.49

Gasket Head, .1mm: 105HZ

$7.46

Clearance Sale!

Carburetor Gasket Set: WLA-2 (3)

$5.15$17.16

Clearance Sale!

Drive Washer: FS-48 Surpass

$13.75

Drive Spacer: GT60

$38.03

Carburetor Dust Covers: #12FB, 12XZ Speed

$7.46

Clearance Sale!

Exhaust Cam: Sirius 7

$21.11$70.37

Clearance Sale!

Exhaust Pipe: 120-240

$21.04

Exhaust Pipe Nut: F40-300

$6.49

Exhaust Pipe Assembly: FS81 Alpha

$19.14

Clearance Sale!

Piston Pin Retainer: GT15HZ

$2.24$7.46

Clearance Sale!

Piston: 50SX-H

$37.80

O-Ring Metal Valve: 120Surpass

$6.49

Piston: 95AX

$48.41

Pushrod Cover: FS-91 Surpass

$10.90

Cover Gasket: FS-70 Ultimate

$11.91

Thermo Insulator: GT15HZ

$10.94

Cylinder Head Gasket, .2mm: 91HZ

$7.46

Thermo Insulator: 21B, 40E, 70C Carb

$17.99

O.S. Engines

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O.S. Engines

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