AN6 Male End: 9/16"-18 UNF thread (standard AN6). Anodized Aluminum AN6 Male to 5/16" (8mm) SAE Quick-Disconnect Female Adapter – Push-On EFI Fuel/Oil Connector. EFI Fuel Systems: Connect AN6 lines to OEM fuel rails (GM, Ford, Chrysler with 5/16" (8mm) QD).
