O.S. Engines

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

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Head Gasket: 55HZ Hyper

$6.49

Intake Manifold: FS-95V

$34.76

Piston Ring: 200 Surpass

$37.80

Main Shaft: 5010-810

$10.99

Stator Assembly: 5010-810

$67.99

Crankshaft Clamp: 32-46

$25.44

Carburetor: 61B-PII 91HZ-PSII

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

Clearance Sale! ⓘ

Carburetor Body: #60J

$21.10

Carburetor Rotor: #60W, FL70

$15.99

Connecting Rod: FS81 Alpha

$27.29

Connecting Rod: GGT10

$48.47

Carburetor Body: 12F2-B, Speed T1202

$15.78 ~~Price reduced from $52.61 to~~

Clearance Sale! ⓘ

Cover Plate: 25XZ

$21.28

Outer Head: 28XZ

$102.52

Outer Head: 21XZ-B Spec 2

$125.67

Needle #20E

$13.78

Joint Spring T-2040

$13.78

Inner Head: 12XZ Speed Spec II

$30.99

Piston Pin: 15RX

$6.29

Rear Bearing: FS-61

$26.34

Camshaft: FS-120 II

$66.15

Cam Follower: 91-300

$22.04

Carburetor Body: #60F

$37.80

Carburetor Rotor: 40K, 46AXII

$33.61

Cylinder Head: .25AX

$19.99

Cylinder Liner: 70SZ-H

$29.90 ~~Price reduced from $99.65 to~~

Clearance Sale! ⓘ

Drive Washer: 15LA

$6.49

Gasket Set: 37SZ-H

$10.94

Gasket Set: 140RX

$8.43

Gasket Head: 65AX

$6.49

Silencer Body: 56 FS

$44.22

Muffler Screws #843 (2)

$6.49

Rocker Cover: FS-120 III

$21.10

Screw Set (12): FS-91 Surpass

$17.08

Plug Terminal: Sirius 7

$10.94

Carburetor Rotor: #60J

$13.78

Cover Plate: FS-95V

$21.17

Crankcase: 15LA Natural

$29.49

Crankcase: 120AX

$135.55

Crankcase: GT15HZ

$190.29

Crankshaft: GT22

$37.67 ~~Price reduced from $125.57 to~~

Clearance Sale! ⓘ

Cylinder Head: Sirius 7

$97.71

Gasket Carburetor: F61-300

$6.49

Head Gasket .4 Aluminum: Sirius 7

$6.49

Cylinder Gasket: GT60

$7.46

90 Degree Muffler Extension Screws (2): 120AX

$6.49

Needle #86 #8H

$13.78

Rocker Arm Shaft: FS-95V

$6.49