O.S. Engines

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

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Inner Head: 12XZ Speed

$30.99

Pump Plate (PD-09) 2/3 Assembly: GF30 II

$71.58

Reduction Gear Bearing: FR5

$8.90 ~~Price reduced from $29.68 to~~

Clearance Sale! ⓘ

Screw Fixing 4x40mm WLA-2 (1): GT55

$6.49

Cover Plate: 55AX

$17.16

Crankcase: FS72 Alpha

$29.79 ~~Price reduced from $87.39 to~~

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Lever Metering Pin WLA-2: GT55

$1.95 ~~Price reduced from $6.49 to~~

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Venturi: 55HZ, 105HZ

$22.04

Head Gasket: 30VG

$7.46

Mixture Control Valve #10A

$13.67

O.S. Metering Needle Assembly 22D Speed B2103

$19.14

Metering Needle Assembly 22C(B): Speed B2102

$5.74 ~~Price reduced from $19.14 to~~

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Cylinder Head: GGT15

$52.69

Mixture Control Valve 80T: Sirius 7

$6.33 ~~Price reduced from $21.12 to~~

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Rocker Arm Retainer: FS-20-240

$6.49

Dust Cap Set: 12-30 Class

$9.85

Slide Valve 12F2: 12XZ Speed Spec 3

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

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Cam Cover: FS-120 Surpass

$10.86

Crankshaft: 25FX

$11.61 ~~Price reduced from $38.71 to~~

Clearance Sale! ⓘ

Intake Valve: 200 Surpass

$13.26 ~~Price reduced from $44.22 to~~

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Muffler Assembly Screw #842

$8.43

Tappet Screw: FS-20 48

$8.49

Carburetor Body: 21JN

$79.99

Carburetor Body: #70C

$87.39