O.S. Engines

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

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Lever Metering Pin WLA-2: GT55

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

Clearance Sale! ⓘ

Pushrod Cover: FS155A-P

$10.94

Piston: FS-95V

$48.43

Piston: GGT10

$52.58

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

Needle Valve Holder 61ER

$11.80

Metering Needle 21M

$19.14

Screw Set (8): 30VG

$9.85

Speed Exhaust Seal Ring (10): B21

$38.86

Throttle Lever Nut #10ER

$6.45

105HZ-R DRS 1.05 Helicopter Engine

$722.99

Carburetor Reducer 6mm, Red: B2101 Speed

$21.10

R5 Glow Plug Cold On-Road

$18.99

T-1070SC L52 Pipe Set

$190.29

Rear Bearing: 19XZ-B Speed

$109.38

Carburetor Body: 21M

$26.16 ~~Price reduced from $87.21 to~~

Clearance Sale! ⓘ

Cover Plate: 105HZ

$22.30

Cover Plate: 21XZ-B Ver2

$6.61 ~~Price reduced from $22.04 to~~

Clearance Sale! ⓘ

Outer Head: 12XZ Speed Spec 3

$92.99

Crankcase: O.S. Speed B2104

$176.99