Fuel Fitting - Quick Connect 6an to 3/8

The EARLS Fuel Fitting - Quick Connect 6AN to 3/8 SAE (part number AT991966ERL) is a precision aluminum fuel injection adapter designed to connect 6 AN male fittings to 3/8-inch SAE female quick-disconnect couplers. This straight-configuration adapter is engineered for fuel system applications where reliable, leak-free connections are critical, whether in high-performance fuel injection systems, motorsports builds, or aftermarket fuel delivery upgrades.

Constructed from aluminum with a black anodized finish, this fitting delivers both corrosion resistance and durability in demanding engine bay environments. The quick-disconnect design allows for fast, tool-free coupling and uncoupling without spillage, a practical advantage during fuel system service, testing, or component swaps. The AN (Army-Navy) to SAE thread conversion enables seamless integration between AN-equipped fuel rails, regulators, and filters and SAE-threaded fuel lines or quick-couplers, eliminating the need for multiple adapters. Weighing just 0.07 lbs and measuring 2.5 x 1 x 3.85 inches, the compact profile fits tight engine bay layouts without interfering with surrounding components.

This adapter serves builders and technicians working on fuel-injected street rods, race cars, engine swaps, and custom fuel system configurations where OEM connector types don't match modern fuel delivery components. The straight configuration prevents flow restriction and makes routing cleaner than offset alternatives. Each unit is sold individually, allowing you to purchase exactly the quantity required for your fuel system layout.

EARLS fittings are recognized in the performance and racing community for precision manufacturing and consistent thread quality—critical factors in fuel systems where leaks create both safety and performance problems.