86-98 Mustang -6An And -8An Fuel Rail Adapter Kit
These handy adapters allow the use of stock fuel rails with aftermarket fuel lines. Adapts the stock rail spring-lock connector to AN6 and AN8 fittings. This kit contains (1) 640880 and (1) 640870 adapter fitting. This kit comes with one of each of the fittings and come with O-Ring Seals Pre-installed. All you have to do is push them into the fuel rail and screw on the AN Line.
This fuel rail adapter kit takes the guess work out of trying to research what size fitting, whether it be -AN sizes or fuel rail sizes. They plugged right into my stock fuel rails, don't leak and look good. Highly recommend!!