Metric fitting:: 18mm male (1.5 pitch) to male 6 AN Flare, with sealing Washer. Provides easy way to connect to stainless Steel braided type lines with #6 AN hose ends. Great for use with coolant, oil, & fuel. Commonly used as a water fitting on Garrett ball bearing turbos.
When used as a water fitting, it fits:
GT40R (GT4088R) GT42R , GT42RS & other large frame T series turbos including T70 , T72, etc.
Also fits the Bosch 044 fuel pump as the inlet fitting.