O.S. Engines

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

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Mixture Control Valve #70A:1.40RX

$25.44

Exhaust Header Pipe Nut: 200 Surpass

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

Clearance Sale! ⓘ

Muffler F6020; FS155A-P

$87.21

Assembly Screw E3080: 35AX

$8.43

Mix Control Valve Assembly: #60

$25.29

Needle Assembly #60R

$22.04

Piston Pin Retainer: GT15HZ

$2.24 ~~Price reduced from $7.46 to~~

Clearance Sale! ⓘ

Rocker Arm: FS-70 Ultimate

$24.99

Rocker Arm Thrust Washer: Sirius 7

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

Clearance Sale! ⓘ

Rocker Cover: 200 Surpass

$22.04

Cylinder Head Screws (10): 120AX

$9.85

Muffler #871: 10-15

$22.04

Rear Bearing: FS52

$22.04

Rear Bearing: Sirius 7

$12.28 ~~Price reduced from $40.94 to~~

Clearance Sale! ⓘ

Cover Plate: 65LA

$10.99

Crankcase: 91SX-H Comp

$39.00 ~~Price reduced from $129.99 to~~

Clearance Sale! ⓘ

Crankcase: FS-62V

$63.22

Crankcase: 200 Surpass

$190.28

Crankshaft: 46AX

$50.72

Cylinder Head: 95AX

$48.41

Cylinder Head with Valves: FS120SE

$185.03

Cylinder Head & Valve: FF-320

$135.66

Cylinder Liner: 91SZ-H

$99.65

Super Can Filter, Small

$11.80