Turbocharger spare parts include cartridges (fully assembled and balanced turbocharger cores); vacuum actuators and pneumatic actuators; electronic actuators (electric servo drives); turbocharger repair kits (spare part kits/sets for quick minor repair); shaft and wheels (turbocharger shafts with turbine wheel, turbine rotors); compressor wheels (turbocharger compressor wheels); VNT nozzle rings (rings with nozzles for VNT turbochargers, VNT geometry control nodes) http://www.tenghengturbo.com/turbocharger-spare-parts/