Logo alt
  • Planes
  • Cars
  • Gliders
  • Helicopters
  • Radios
Loading...
Loading...
Loading...
Loading...
Loading...

  • Fits the same mount and bolt pattern as the 61FX.
  • The angular head design looks great and significantly increases surface area for better cooling.
  • Includes the new Power Box™ muffler, designed with more volume for increased power while still being very compact.
  • A diagonallyplaced needle means no remote needle valve is needed.

Logo alt
Categories
  • Planes
  • Cars
  • Gliders
  • Helicopters
  • Boats
  • Batteries & Chargers
  • Radios
  • Equipment
  • Gifts
  • Shop By Brand
Section

    Copyright Text - 2025 Modelflight

    Loading...
    Loading...

    OS Engines MAX 75AX .75 Nitro Aircraft Engine with E-4040 Silencer, OSM17400

    SKU: OSM17400
    Loading...
    Loading...

    The third engine in the new ‘AX’ range of high performance 2 stroke engines fills a convenient gap between the existing 61FX and 91FX, yet features the radical new style pioneered with the fabulous 55AX. The new 75AX is supplied complete with the latest ‘P-Box’ design silencer for improved noise suppression. By keeping the lower crankcase dimensions the same as the 61FX, you can be sure that it will fit in all models designed for a .61, making a power upgrade very simple. The 75AX features the latest O.S. ringless piston technology with multi-layer cylinder coating and high precision Type 61A carburettor with angled safety needle valve assembly.

    $439.99
    Loading...
    Loading...
    Loading...
    Loading...
    Loading...
    Loading...

    OS Engines MAX 75AX .75 Nitro Aircraft Engine with E-4040 Silencer, OSM17400

    SKU: OSM17400
    $439.99
    Loading...
    Loading...

    The third engine in the new ‘AX’ range of high performance 2 stroke engines fills a convenient gap between the existing 61FX and 91FX, yet features the radical new style pioneered with the fabulous 55AX. The new 75AX is supplied complete with the latest ‘P-Box’ design silencer for improved noise suppression. By keeping the lower crankcase dimensions the same as the 61FX, you can be sure that it will fit in all models designed for a .61, making a power upgrade very simple. The 75AX features the latest O.S. ringless piston technology with multi-layer cylinder coating and high precision Type 61A carburettor with angled safety needle valve assembly.

    In stock

    Similar Products

    Loading...
    OS Engines Cylinder Head Gasket .2mm, GGT15, GT15
    OS Engines Cylinder Head Gasket .2mm, GGT15, GT15$10.99
    View product
    OS Engines Speed Hex Wrench, 2.5mm Ball End
    OS Engines Speed Hex Wrench, 2.5mm Ball End$36.99
    View product
    OS Engines Muffler Extension 35mm, 65AX, 95AX
    OS Engines Muffler Extension 35mm, 65AX, 95AX$25.99
    View product
    OS Engines Head Button, R2104
    OS Engines Head Button, R2104$63.99
    View product
    OS Engines Inner Head, R2101, R2102, R2103
    OS Engines Inner Head, R2101, R2102, R2103$60.99
    View product
    OS Engines Carburettor Sealing Washer(18.0) 60k.60b, Final Clearance
    OS Engines Carburettor Sealing Washer(18.0) 60k.60b, Final Clearance$8.99 $2.99
    View product
    OS Engines Main Shaft suit OMH-5830-490, Final Clearance
    OS Engines Main Shaft suit OMH-5830-490, Final Clearance$47.99 $14.99
    View product
    OS Engines Piston Pin, 55AX
    OS Engines Piston Pin, 55AX$15.99
    View product
    OS Engines Hex Head Screw M4.0x20, 10pcs
    OS Engines Hex Head Screw M4.0x20, 10pcs$15.99
    View product
    OS Engines Hex Head Screw 4x15mm, 10pcs, GT33
    OS Engines Hex Head Screw 4x15mm, 10pcs, GT33$15.99
    View product
    Looking for spare parts or upgrades?

    View all spare parts