O.S. Engines

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

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1,153-1,176 of 1,605 Results

Carburetor Rotor: 61HB

$26.24

Choke Shaft: WLA-2, GT55

$7.79 ~~Price reduced from $25.99 to~~

Clearance Sale! ⓘ

Connecting Rod: 140RX

$48.51

Connecting Rod: GT33

$67.42

Crankcase: 75AX

$35.93 ~~Price reduced from $119.78 to~~

Clearance Sale! ⓘ

Crankshaft: 50SX-H

$55.12

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

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

Insulator, 60K

$19.05

Exhaust Gasket: 55HZ

$17.16

Cylinder Head Gasket: 25AX

$6.49

Gasket Head: 46AXII

$6.49

Exhaust Gasket: GT33

$7.46