This is a Garrett replacement Center Housing Rotating Assembly (CHRA) Cartridge for the GT4202R (aka GT42RS) turbo. It's a complete rotating unit that's made, assembled & fully balanced by Garrett. Ready to go out of the box. Comes with manufactures warranty. Used to replace the "Heart" of your turbo. Simply bolt on your housings & you're ready to go with a brand new fresh turbo.
Housing installation is easily done by the customer & takes about 10-15 minutes. It's just a matter of a few bolts.
Garrett Part # 451888-5011S