Restrictor size - 1mm. Enhance your turbo system's performance with the Garrett AN-4 Turbo Oil Feed Fitting, designed for GT and GTX series turbos. The part number for reference is GTOF4, and it is interchangeable with -4 AN feed parts.
The AN-4 Turbo Oil Feed Fitting with Restrictor GT and GTX Series Garrett Turbos would be the best fit for applications requiring accurate oil supply to high-performance, twin-scroll turbochargers.
