O.S. Engines

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

Filter

Clear Filters

1,057-1,080 of 1,605 Results

O.S. Crankcase OS Speed R21GT

$185.04

Crankcase: 25FX

$44.10

Connecting Rod: 35-40FP, 40 LA

$21.10

Connecting Rod: 140RX

$48.51

Connecting Rod: R2102, Speed 21XZ-GT

$52.58

Connecting Rod Plate: GGT10

$6.68 ~~Price reduced from $22.26 to~~

Clearance Sale! ⓘ

Connecting Rod: 120AX

$36.85

RP6 Turbo Glow Plug Medium On-Road

$14.99

Heat Sink Head: 91SX-H

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

Clearance Sale! ⓘ

Motor Mount: 25FX, 32SX, 35AX

$25.29

Motor Mount: 15LA

$22.26

Cylinder Head: 25LA Natural

$17.08

Crankshaft: 21XZ-B Spec 2

$63.06 ~~Price reduced from $210.21 to~~

Clearance Sale! ⓘ

Outter Head: O.S.SPEED R21GT2

$133.99

Crankshaft: 25FX

$11.61 ~~Price reduced from $38.71 to~~

Clearance Sale! ⓘ

Air Bleed Screw: FS-20, FS-40

$6.49

Crankcase: 50SX-H

$67.24

Crankcase Heat Sink: 91HZ

$29.60

Crankcase: 56 FS

$57.96

Crankcase: FS155A-P

$174.52

Crankshaft: 75AX

$66.04

M2001SC Manifold: 21XZ-R, 21VG

$67.39

Connecting Rod: GT33

$67.42

Connecting Rod with Bearings: GT60

$97.90