Aeroflow BOOSTED 6973 Turbocharger Core Only (AF8059-4816)6973 CORE ONLY CHRA JOURNAL Dual Ball Bearing, No Housing Part Number: AF8059 4816 Boosted Turbocharger Replacement Core. As another way of backing up our excellent Boosted Turbocharger range, we stock replacement core's for all popular Boosted Turbo models. This way if you have a mis hapthat has damaged either of thewheels or even the internals of the turbocharger you can easily purchase the core and swap it out. These cores are designed to suit