The Rochester Quadrajets originally used a steel line from the pump to the carburetor inlet fitting but many have been swapped and that line is long gone and rubber hose is being used in its place

This is a new brass adapter fitting that screws into many of the Quadrajet inlet fittings and allows you to use a 5/16 rubber hose. Fitting threads at the screw in part are 5/8-18 thread and the hose barb end is 5/16.

We will also be listing these in 3/8 as well as pairs and with the actual inlet fittings so be sure and check our store out for those.

Shipped in a box by USPS so the threads do not get damaged.