Prevent splitting your transmission case by using the correct thread for the job!
This fitting is used to connect a -6 AN line to the rear cooler port of a 4L80E transmission which requires a NPS straight thread, not a tapered pipe thread.
Failure to use this special fitting on cases that have the rear mounted cooler return line can mean failure of the transmission due to improper lubrication.
The extended design of this fitting ensures that the returning ATF is directed into the center carrier of the case, where the lube is then distributed to the rear bearings.
_t.jpg "NPS Thread Transmission Fittings")
