O.S. Engines

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

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Screw Set (12): FS-26 Surpass

$9.46

Drive Washer: 120AX

$8.19 ~~Price reduced from $27.29 to~~

Clearance Sale! ⓘ

Head Gasket: 21TM

$9.74

Cylinder Piston Rod Set: O.S. Speed B2104

$242.95

Carburetor Retainer: 21EX-B, R

$11.87

Crankcase: 21XZ-B

$124.99

Cylinder Rebuild Kit: R2101 Speed

$232.21

Outer Head: 19XZ-B Speed

$102.20

Air Filter: INS

$40.99

Carburetor Body: 21J3

$29.31 ~~Price reduced from $97.70 to~~

Clearance Sale! ⓘ

Connecting Rod: Speed B2101, B2102

$52.58

Gasket Head Aluminum, .2mm: 19XZ-B Speed

$5.31

Thermo Insulator, 11K: 18TM

$19.14

Gasket Head, .1 Brass: 21XZ-R

$6.49

Rear Adapter: 18TM

$19.05

Speed Flywheel Puller

$48.34

Outer Head O.S. Speed R2106

$124.99

Heat Sink Head: 91SX-H

$17.39 ~~Price reduced from $57.99 to~~

Clearance Sale! ⓘ

Motor Mount: 15LA

$22.26

Powerboost Pipe: III 50, 55HZ-H

$184.86

Bearing Rear: 65AX

$22.16

Rear Bearing: 108-160

$26.34

Carburetor Screw: #103A2A

$6.49

Back Plate Parallel Pin: Sirius 7

$6.49