BorgWarner S400 turbocharger cartridge, 75 mm compressor wheel sizing. This cartridge (CHRA) is the rotating assembly used to rebuild or replace the core of compatible S400-series turbochargers, restoring the central rotating components without replacing the entire turbo. It’s intended for service or upgrade applications where the 75 mm cartridge matches the original turbo geometry and specifications.
BorgWarner Cartridge S400 75mm (75/96)