From nose cone to exhaust duct, we maintain a large inventory of turbine parts ready for immediate delivery.
For over 25 years, supporting FT4 / GG4 gas turbines has been our focus.
We maintain a large inventory of new surplus, overhauled, and serviceable spare parts used across the GG3, GG4, FT4, and FT8 engine platforms.
By stocking critical turbine hardware and replacement parts, we help operators reduce lead times, minimize downtime, and stay running.


Reliable inventory management is critical to turbine operations.
Johnson Turbine Support maintains a broad inventory of components supporting Pratt & Whitney GG4 and FT4 gas turbines.
Many orders received before 3 PM can ship the same day, helping operators avoid the long lead times often associated with turbine parts.
For many high-demand turbine components, we offer a rotable exchange program designed to reduce lead times and keep turbines online.
Instead of waiting for repairs, operators can exchange components and return the removed unit for overhaul.
Common rotable components include fuel pumps, manifolds, starters, valves, combustion chambers, transition ducts, and other accessory hardware.

Turbine blades
Turbine nozzle guide vanes
Compressor blades
Free turbine blades
Free turbine vanes
Combustion chambers
Transition ducts
Fuel manifolds
Fuel nozzles
Bearings
Carbon seals
Seal face assemblies
Seal plates & housings
Ignition exciter boxes
Igniter leads & plugs
Wiring harnesses
Transducers
Thermocouples
Contact our team to check availability or request pricing.
Contact Sales