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: FS155A-P

$10.94

Piston: GGT10

$52.58

Piston: FS-95V

$48.43

Piston Ring: 32FH

$26.24

Screw Set (12): FS-40 Surpass

$9.44

Valve Assembly Exhaust: FS-52 Surpass

$22.26

Venturi: 15FP S

$9.85

Venturi: 55HZ, 105HZ

$22.04

Cylinder Liner 91HZ-R Speed 3D

$121.99

Piston/Sleeve/Rod set: O.S. SPEED R2106

$279.99

Slide Valve 2 (21M)

$32.99

Heatsink Head 55HZ.HZ-R

$138.99

Pump Unit PD-08: FS-200S-P

$87.29

Nipple: GGT10

$7.57 ~~Price reduced from $25.25 to~~

Clearance Sale! ⓘ

Camshaft Bearing: F 40-120

$17.16

Carburetor Body: #10H

$13.99

Carburetor Body: 40L, 55HZ Hyper

$23.00 ~~Price reduced from $76.68 to~~

Clearance Sale! ⓘ

Connecting Rod: 21VF/SE

$21.10

Connecting Rod with Bearings: GT60

$97.90

Crankcase: FS81 Alpha

$87.19

Crankshaft: FT-120 160

$87.53 ~~Price reduced from $199.31 to~~

Clearance Sale! ⓘ

Cylinder Head with Valve: FS-91-P

$135.63

Exhaust Gasket: 55HZ

$17.16

Exhaust Pipe: 120-240

$21.04