Accessory Gearbox

We provide total life-cycle support for your PT6 engine. We have couplings for the compressor and shaft for the Accessory Gearbox in stock.

Power Turbines

There’s strength in technology and our unmatched offering of products and services. We provide a variety of parts for the power turbine including seal rings, rotor air seals, blades, interstage stator and rotor seals, and couplings.

Reduction Gearbox

We add efficiency and reliability to your PT6 engine with FAA approved sun and planet gears, bushing kits, and prop seal runners.


Extex Engineered Products provides Aerospace Aftermarket parts for PT6A-6, 6A, 6B, 6/C20, 20, 20A, 20B, 21, 25, 25A, 27, 28, 34, 34AG, 34B, 36, 38, 41AG, 41, 42, 62, 135, and 135A engines to name just a few.

Compressor Turbine

Parts that we offer for the compressor turbine assembly are shroud segments, seal rings, blades, stub shafts and more.