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O.S. Engines

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

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80-103 of 1,808 Results

Drive Shaft Nut: 21XM

Drive Shaft Nut: 21XM

$11.87

Cylinder & Piston Assembly: 21XZ-R

Cylinder & Piston Assembly: 21XZ-R

$188.33

Rear Housing: 21XM

Rear Housing: 21XM

$52.65

Idle Adj Valve; FS-90/120

Idle Adj Valve; FS-90/120

$11.80

Gasket Set: 21XM

Gasket Set: 21XM

$11.87

Cover Plate: 21XZ-B

Cover Plate: 21XZ-B

$22.04

Rotor Guide Screw #20J

Rotor Guide Screw #20J

$6.49

Flex Shaft Assembl:y 21XM

Flex Shaft Assembl:y 21XM

$29.46

Muffler Assembly Screws #E-2050 (4)

Muffler Assembly Screws #E-2050 (4)

$7.49

Crankcase: 18CV-R

Crankcase: 18CV-R

$52.52

Cylinder Head: 21XM V2 Outboard Marine

Cylinder Head: 21XM V2 Outboard Marine

$91.34

Needle Assembly 21-120

Needle Assembly 21-120

$22.04

Screw Set CZ-M (8)

Screw Set CZ-M (8)

$9.85

Flywheel #2J

$31.50

Muffler: E2050-2, 21XM, V2 Outboard Marine

Muffler: E2050-2, 21XM, V2 Outboard Marine

$87.29

Crankcase: 21XM

Crankcase: 21XM

$125.10

P4 Turbo Plug Super Hot Off-Road

P4 Turbo Plug Super Hot Off-Road

$5.24 ~~Price reduced from $14.99 to~~

Clearance Sale! ⓘ

Needle Holder 21M: 21XZ-R

Needle Holder 21M: 21XZ-R

$16.09

#7 Glow Plug, Medium Hot Air

#7 Glow Plug, Medium Hot Air

$11.99

Needle #7M #7LFS

Needle #7M #7LFS

$13.78

Gasket Carburetor: 61-108

Gasket Carburetor: 61-108

$6.49

Cylinder & Piston: B21 Speed Adam Drake

Cylinder & Piston: B21 Speed Adam Drake

$65.91 ~~Price reduced from $188.33 to~~

Clearance Sale! ⓘ

Exhaust Gasket: 21RZ

Exhaust Gasket: 21RZ

$13.78

Standoff 5x44.5mm 1-3/4" (4): GT55

Standoff 5x44.5mm 1-3/4" (4): GT55

$44.10