The reduction gearbox is one of the highest-cost assemblies in PT6 engine maintenance. EXTEX manufactures FAA-approved sun and planet gears, bushing kits, and propeller shaft seals — high-precision aerospace machined components that add efficiency and reliability while significantly reducing your aircraft MRO parts costs. Our reduction gearbox components are engineered for extended service life, helping operators stretch intervals between overhauls.
EXTEX Engineered Products provides FAA-approved aerospace aftermarket parts for the complete PT6 engine family, including the 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, to name just a few. Every component carries Parts Manufacturer Approval (PMA) and is manufactured to meet or exceed original equipment specifications, delivering reliable aircraft engine replacement parts at a lower total cost of ownership.
The turbine section creates the power in the engine. Our PMA nozzles give you many options and are cut to your condition and flowed to your specification. Other parts in our inventory include bearings, damper segments, labyrinth seals and more.
Our gear technology that we provide improves lubrication and reduces wear resistance, and maintains the proper gearbox operating temperatures. Our bearings for the RR250 gearbox module are well known for their reliability worldwide.
The compressor module is comprised of a series of blades and an impeller. It takes air and compresses it before moving to the combustion section. We stock many of these parts so you don’t have to.