Convert your OEM EFI fuel feed or return lines into high-performance AN hose configurations with our EFI SAE Quick‑Connect to AN Adapter Fitting. Designed to fit LS engines and many GM applications, this adapter lets you bridge factory EFI quick connects (3/8″ feed or 5/16″ return) to AN6 or AN8 lines using Hot Rod AN hose end fittings.

🔧 Why You'll Love This Fitting

• ✅ Female SAE quick‑connect on one end (OEM feed/return) and AN male thread on the other
• ✅ Screw‑on cap secures the connection—no plastic clips to fail over time
• ✅ Dual O‑ring seal design ensures leak‑free performance at high pressure
• ✅ Perfect for adapting LS intakes, Corvette‑style regulators, sending units, and EFI sensors
• ✅ Use the 5/16″ version with AN8 for high‑flow return‑style installations
• ✅ Compatible with Hot Rod AN LLC female hose ends for seamless AN hose routing

🧩 How It Works in Your Build

LS intakes and Corvette‑style adjustable regulators use SAE quick‑connect for fuel feed (3/8″) and return (5/16″). These adapters convert those factory connections to AN‑style—allowing you to install PTFE hose and performance fittings effortlessly.

🔗 Complete Your System: Recommended Accessories

AN Hose & Fitting Bundles

Pair this adapter with premium PTFE hoses and matching fittings for full system builds:

• AN Hose & Fittings Bundles

Extra Hose End Fittings

Need additional hose ends for regulators, filters, or branching? Grab from our full range:

• AN PTFE Hose End Fittings Collection

LS Swap Fuel System Kits

Make your EFI conversion turnkey with complete kits including hose, fittings, and adapters:

• LS Engine AN Fuel System Swap Kits

Fuel Filters

Keep your injectors and pump protected with high‑flow in-line filters:

• Fuel Filters Collection

🔍 Fitment & Compatibility

• Direct replacement for factory SAE quick‑connect feed (3/8″) or return (5/16″) fittings
• Adapters available for AN6 or AN8 depending on desired flow capacity
• Use return‑style version (5/16″ to AN8) when pairing with high flow systems
• Works exclusively with Hot Rod AN female hose ends

🏁 Final Word

If you’re building or upgrading an LS fuel system, completing an EFI conversion or adapting sending units, sensors and more to AN this SAE quick‑connect to AN adapter is the cleanest, most reliable way to move from factory fittings into modern PTFE hose and AN plumbing. With integrated sealing, screw‑on cap retention, and compatibility across OEM and performance parts, it’s a small part that completes your fuel system right.