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O.S. Engines

  • OS 37 SZ-H Ring Helicopter Motor

    OS 37 SZ-H Ring Helicopter Motor Overview Designed to deliver premium performance for 30-sized machines, from extreme aerobatics to stable hovering! The crankshaft has been re-engineered to...

    $324.95
  • OS 55AX (40K) Engine w/E-3071 silencer

    OS 55AX (40K) Engine w/E-3071 silencer   Features Same mounting dimensions as the O.S. Max .46 AX Power Box positionable muffler Angular head design offers increased surface area for...

    $289.00
  • OS Engines 160 FX Motor w/Muffler

    OS Engines 160 FX Motor w/Muffler Features One-piece crankcase Twin ball bearing-supported crankshaft Schnuerle porting (Schnuerle scavenging) Steel liner and ring with Aluminum...

    $444.95
  • OS Engines Max-12CV-R Engine

    OS Engines Max-12CV-R Engine   Features Larger crankshaft gas passage Optimised port timings Allows fitment to cars that require “plain” style crankshaft and also uses 10A...

    $149.95
  • OS Engines MAX-95AX w/E-4040 Silencer

    OS Engines MAX-95AX w/E-4040 Silencer   Overview The 95AX Engine from O.S. Engines is a powerful addition to your aerobatic and/or large-scale RC plane.  The 95AX Engine from O...

    $399.00
  • OS GT-60 Gasoline engine w/muffler

    Overview For large-scale RC planes, the GT-60 from OS Engines is a superb choice; giving you the performance you need to succeed. Features Linerless cylinder with the cylinder head...

    $769.95
  • OS GT15 Gasoline Engine w/ Silencer

    OS GT15 Gasoline Engine w/ Silencer Overview Ideal for .60 2-stroke and .90 4-stroke models, the GT15 gasonline engine from OS Engines delivers the power you need. Features Offers...

    $479.00
  • OS MAX-21XZ-B Ver.iI

    OS MAX-21XZ-B Ver.iI Features Performance that rivals that of the acclaimed Speed 21XZ-B Spec II Shares the same piston, liner and con rod as the Speed version Lightening holes in the...

    $349.95