O.S. Engines

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

Filter

Clear Filters

1,585-1,605 of 1,605 Results

Carburetor Complete #40NA: 56FS

$35.01 ~~Price reduced from $87.19 to~~

Clearance Sale! ⓘ

Throttle Lever Nut #2CK #2H

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

Clearance Sale! ⓘ

O.S. Cylindr & Piston Assy OS Speed R21GT

$69.66 ~~Price reduced from $232.21 to~~

Clearance Sale! ⓘ

Connecting Rod: 21XR-B Version II

$8.87 ~~Price reduced from $29.56 to~~

Clearance Sale! ⓘ

Piston Pin: 75AX

$3.57 ~~Price reduced from $11.91 to~~

Clearance Sale! ⓘ

Needle Valve Assembly: 40G

$26.24

Cylinder Liner: GT33

$23.48 ~~Price reduced from $78.25 to~~

Clearance Sale! ⓘ

Crankcase: 30VG

$26.21 ~~Price reduced from $87.39 to~~

Clearance Sale! ⓘ

Cylinder & Piston: 12TR (P)-T

$75.99

Metering Needle 12F2: 12XZ Speed Spec

$5.74 ~~Price reduced from $19.14 to~~

Clearance Sale! ⓘ

Piston Ring: 160FX

$32.56

Carburetor: 61B-PII 91HZ-PSII

$86.14 ~~Price reduced from $226.99 to~~

Clearance Sale! ⓘ

Carburetor #70D: 120AX

$30.62 ~~Price reduced from $102.08 to~~

Clearance Sale! ⓘ

Exhaust Pipe Nut: FS-120 III

$6.49

Rotor Stop #3A #2A

$6.49

Crankshaft: GT33

$37.64 ~~Price reduced from $125.47 to~~

Clearance Sale! ⓘ

Main Shaft: 5020-490 .40

$10.99

Crankshaft: 200 Surpass

$37.62 ~~Price reduced from $125.39 to~~

Clearance Sale! ⓘ

Piston Ring: FS72 Alpha

$8.85 ~~Price reduced from $29.49 to~~

Clearance Sale! ⓘ

M16 In-Cowl Exhaust Header Pipe Invrtd 80D: FS200S

$44.22

Carburetor Rotor: 70R, FS155A-P

$13.30 ~~Price reduced from $44.34 to~~

Clearance Sale! ⓘ