# EXTEX Engineered: FAA Approved Replacement Parts for Aircraft \& Helicopter

> EXTEX designs, inventories, \& supplies FAA approved replacement parts for engines, helicopters, and fixed\-wing aircraft\.

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## Pages
- [Meet the Team](https://extex.com/meet-the-team/)
- [Resources](https://extex.com/resource-documents/)
- [About Us](https://extex.com/about-us/)
- [Platforms](https://extex.com/aerospace-platforms/)
- [Contact](https://extex.com/contact/)

## Parts
- [AW139 Drive Systems](https://extex.com/part/aw139-drive-systems/)
- [Accessory Gearbox](https://extex.com/part/pt6-accessory-gearbox/): We provide total life\-cycle support for your PT6 engine accessory gearbox, including couplings, shafts, gears, and sealing components\. The accessory gearbox drives critical engine systems — fuel control, oil pump, starter\-generator — making component reliability essential\. EXTEX accessory gearbox parts are precision\-ground and inspected to ensure consistent performance, with strategic inventory levels maintained for rapid fulfillment\.
- [Compressor Section](https://extex.com/part/pt6-compressor/): EXTEX offers a full range of PMA aerospace components for the PT6 compressor section, including tie rods, carbon seals, blade retainer rings, and compressor blades\. As high\-precision certified parts manufactured to original design specifications, our compressor components deliver cost\-effective engine maintenance solutions without sacrificing quality\. Every part is FAA\-approved and ready to install across all supported PT6 engine variants\.
- [Compressor Turbine Section](https://extex.com/part/pt6-compressor-turbines/): Our compressor turbine section components include shroud segments, seal rings, CT blades, stub shafts, and associated hardware\. These parts operate in the highest\-temperature zone of the PT6 engine, demanding the most exacting manufacturing standards\. EXTEX compressor turbine parts are produced from certified aerospace\-grade alloys and machined to tight tolerances, ensuring reliable performance across the full operating envelope\.
- [Power Turbine Section](https://extex.com/part/pt6-power-turbines/): EXTEX provides a comprehensive offering of flight critical certified replacement parts for the PT6 power turbine section, including seal rings, rotor air seals, blades, interstage stator and rotor seals, and couplings\. Our PT6 turbine blades feature advanced sulfidation\-resistant coatings that extend time on wing — a critical advantage for operators in corrosive environments\. Every power turbine component undergoes rigorous dimensional inspection and metallurgical verification before shipping\.

## Platforms
- [KAflex Drive Systems](https://extex.com/platform/kaflex-drive-systems/): The Kamatics KAflex® driveshaft systems are trusted in flight\-critical aerospace applications worldwide\. Engineered for safety and durability, these drive systems deliver reliable performance across demanding military and commercial platforms\.
- [PT6 Replacement Parts](https://extex.com/platform/pt6/): EXTEX offers more than 90 FAA\-approved aftermarket components for the PT6 engine family, covering reduction gearboxes, power turbines, compressors, and accessory gearboxes\. Our PT6 turbine blades feature sulfidation\-resistant coatings to extend time on wing, helping operators reduce maintenance costs across dozens of engine variants\.
- [MD Helicopter Replacement Parts](https://extex.com/platform/md-500/): EXTEX manufactures FAA\-approved flight\-critical aftermarket parts for MD helicopter platforms, including the MD 500 series\. Our certified replacement components deliver TCH\-equivalent performance at reduced cost with shorter lead times\.
- [Airbus Helicopter Replacement Parts](https://extex.com/platform/airbus-helicopter/): EXTEX offers a growing catalog of FAA\-approved aftermarket replacement parts for Airbus helicopter platforms\. Our certified components keep line maintenance items available when you need them, helping reduce aircraft downtime and operating costs\.
- [APU Replacement Parts](https://extex.com/platform/apu/): EXTEX manufactures FAA\-approved aftermarket replacement parts for auxiliary power units \(APUs\) used in commercial and military aircraft, including the GTCP331\-200/250, GTCP331\-500, GTCP85, GTCP131\-9, and T\-62T models\. Our APU components are engineered to reduce operating costs while maintaining the performance and reliability operators depend on\.

## Part items
- [E23031922](https://extex.com/part_item/e23031922/)
- [E369D25501\-9](https://extex.com/part_item/e369d25501-9/)
- [E500N5215](https://extex.com/part_item/e500n5215/)

## Documents
- [T\-2000 Rev A](https://extex.com/documents/t-2000-rev-a/)
- [T\-2100 Rev A](https://extex.com/documents/t-2100-rev-a/)
- [350A33\-2150\-01 Supplement 88](https://extex.com/documents/350a33-2150-01-supplement-88/)

## Resources
- [Core Return \| PDF](https://extex.com/resources/core-return-pdf/)
- [KAflex Flyer \| PDF](https://extex.com/resources/kaflex-flyer-pdf/)
- [407 Parts Flyer](https://extex.com/resources/407-parts-flyer/)
- [206 Bolts Flyer](https://extex.com/resources/206-bolts-flyer/)
- [Airbus Scissor Link](https://extex.com/resources/airbus-scissor-link/)

## Slider
- [Parts for Aircraft](https://extex.com/slider/unmatched-in-the-industry-v2/)
- [Unmatched in the Industry](https://extex.com/slider/slide-2/)
- [Precision Parts](https://extex.com/slider/client-testimonial-rauch-performance-turbine-2/)
- [Client Testimonial Rauch Performance Turbine](https://extex.com/slider/client-testimonial-rauch-performance-turbine/)
- [Reduce Costs C20 Series](https://extex.com/slider/slide-3/)

## Categories
- [Testimonial](https://extex.com/category/testimonial/)
- [Article](https://extex.com/category/article/)
- [Plane](https://extex.com/category/plane/)
- [Tradeshows](https://extex.com/category/tradeshows/)
- [Parts Offering](https://extex.com/category/parts-offering/)

## Platform types
- [Platforms](https://extex.com/platform_type/platforms/)
- [Bell Helicopter](https://extex.com/platform_type/bell-helicopter/)
- [PT6](https://extex.com/platform_type/pt6/)
- [Rolls Royce](https://extex.com/platform_type/rolls-royce/)
- [KAflex Drive Systems](https://extex.com/platform_type/kaflex-drive-systems/)

## Documnets categories
- [MD500 Technical Documents](https://extex.com/documnets_categories/md500-technical-documents/)
- [Airbus Technical Documents](https://extex.com/documnets_categories/airbus-technical-documents/)

## Platforms
- [PT6](https://extex.com/platform/pt6/)
- [T53](https://extex.com/platform/t53/)
- [RR250](https://extex.com/platform/rr250/)
- [MD HELICOPTOR](https://extex.com/platform/md-helicoptor/)
- [206](https://extex.com/platform/206/)

## Resource Types
- [PDF](https://extex.com/resource_type/pdf/)
- [Power Point](https://extex.com/resource_type/power-point/)
- [Image File](https://extex.com/resource_type/image-file/)
- [Excel Sheet](https://extex.com/resource_type/excel-sheet/)

## Optional
- [Sitemap index](https://extex.com/sitemap_index.xml)