O.S. Engines

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

Filter

Clear Filters

1,053-1,076 of 1,605 Results

Connecting Rod: 18TM

$48.51

Cylinder Rebuild Kit: R21

$188.45

Cylinder Piston Assembly: R21

$39.83 ~~Price reduced from $132.77 to~~

Clearance Sale! ⓘ

Inner Head: R2101 Speed

$52.69

Outer Head: 21XZ-R

$69.99

Outer Head O.S.Speed B21 Adam Drake II

$32.39 ~~Price reduced from $107.98 to~~

Clearance Sale! ⓘ

LC3 T-Maxx Revo Glow Plug Hot

$11.99

T-2080 C-Ring

$9.19

Cylinder Rebuild Kit: 21XZ-GT Speed

$66.47 ~~Price reduced from $221.55 to~~

Clearance Sale! ⓘ

Cylinder & Piston B2101 Speed

$193.68

Outer Head: O.S. Speed R2104

$148.60

55HZ-R DRS Ringed .55 Helicopter Engine

$510.44

Inner Head: T1204 with O-Ring

$39.26

101/102 Elements (6)

$13.83

P4 Turbo Plug Super Hot Off-Road

$14.99

T-2090SC Tune Pipe: 21XZ-B, 21VZ-B, 25XZ, 30VG

$173.43

Connecting Rod with Retainers: Speed T1201

$44.17

Crankcase: B2102 Speed

$147.19

Crankshaft: O.S. Speed R2104

$262.05

Built-up Parts Set for Cylinder & Piston: O.S. Speed R2104

$309.38

Heat Sink Head: 18CV-R

$91.50

Radial Mount Set: GF30, GF30II

$99.99

Carburetor #70N: FS120SII

$141.93

Cylinder Head Fixing Screws: 21TM

$9.85