O.S. Engines

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

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285-308 of 1,605 Results

Piston: 200 Surpass

$57.96

Prop Washer: 40-61

$6.49

Rocker Support: FS110A

$8.88 ~~Price reduced from $29.60 to~~

Clearance Sale! ⓘ

Valve Spring Retainer: FS-70SII

$6.49

Carburetor 61H: GT15

$147.01

Exhaust Header Pipe Assembly: F6020 FS155A-P

$25.29

Cylinder Head Screws: 56 FS

$9.85

Motor Mount: FT120, FT160

$44.13

Motor Mount: FS52S, 56A

$36.85

Rear Bearing: FS120 III

$10.08 ~~Price reduced from $33.61 to~~

Clearance Sale! ⓘ

Front Ball Bearing: 40, 46, 48

$21.17

Carburetor Body: 61T, FS-62V

$11.68 ~~Price reduced from $38.95 to~~

Clearance Sale! ⓘ

Speed Hex Wrench Ball Driver 2.0mm

$36.84

Cylinder/Piston/Rod Set: O.S. Max .12 TG Version 4

$111.36

Carburetor Reducer 6.5mm, Red: B2101 Speed

$21.10

T-1070SC L52 Pipe

$135.44

Cover Plate: 12TG

$11.80

Crankcase: 21XZ-R VII

$45.70 ~~Price reduced from $152.36 to~~

Clearance Sale! ⓘ

Cylinder & Piston Assembly: 12XZ

$99.51

Inner Cylinder Head: 12XZ

$32.56

Slide Valve #21JS

$32.56

Crankshaft: O.S. Speed B2104

$237.99

Connecting Rod: R2102, Speed 21XZ-GT

$52.58

O.S. Cover Plate Speed: T1203

$17.99