Why Use an EFI Quick-Disconnect AN Adapter?

Many factory EFI systems use SAE quick-disconnect fuel rail connections that are incompatible with aftermarket braided AN hose systems. This adapter converts those OEM-style fittings into a standard 6AN male flare connection for cleaner, stronger, and more serviceable fuel system upgrades.

Translation: less fighting with brittle factory clips and more actual progress.

Size:The thread size of 6an is 9/16-18UNF. The ID of spring lock is 5/16 inch

Features

• 6AN male flare fitting
• 5/16-inch SAE quick-disconnect female connection
• Compact 90-degree push-on design
• Lightweight billet aluminum construction
• Precision CNC-machined sealing surfaces
• Leak-resistant EFI connection
• Corrosion-resistant anodized finish
• Compatible with braided AN fuel hose systems
• Supports EFI fuel delivery applications

Seal:The 6an flare efi fitting is sealed at 37 degree angle to keep away from leakage

Common Applications

• EFI fuel rail conversions
• LS swap fuel systems
• Return-style fuel setups
• Turbocharged fuel systems
• Fuel pressure regulator plumbing
• Custom AN fuel routing
• High-performance street cars
• Drift and drag race vehicles
• E85-compatible fuel systems

Parameter:Working pressure: 1500psi; Temperature range: -40°F to 176°F
Subject material:Product of aluminum alloy 6061-T6. Spring lock is Product of plastic

90 Degree Design Simplifies Routing

The 90-degree configuration helps reduce hose stress and allows cleaner routing around intake manifolds, firewall clearances, radiators, and tight engine bay packaging. This is especially useful in turbocharged or swapped vehicles where space disappears faster than your modification budget.

Basically built for engine bays where every hose routing decision becomes a life choice. Looking to convert to E85? Use this guide here.

Perfect for Modern Fuel System Upgrades

AN fuel plumbing has become the standard for performance EFI systems because it improves durability, serviceability, and fuel compatibility compared to aging factory plastic and rubber fuel lines. This adapter allows builders to integrate aftermarket braided hose systems while retaining factory fuel rail compatibility.

Especially important when your fuel pump now sounds like industrial machinery.

Application:Widely utilized in engine fuel rail, ls swap, transmission cooler, go back line, fuel sensor, and so forth
Note: This package comprises just one connector and does no longer include every other products

Built for Performance Fuels

Compatible with gasoline, E85, ethanol blends, and race fuels, this fitting supports the demands of modern high-performance fuel systems and aggressive tuning setups.

Because E85 builds consume fuel with the urgency of a Black Friday sale.

Why Choose EVIL ENERGY?

EVIL ENERGY continues to provide enthusiasts with affordable and dependable AN fittings, fuel system adapters, and EFI plumbing solutions. Their quick-disconnect adapters combine durable construction, strong sealing performance, and installation flexibility for both street and motorsports applications.

Because fuel spraying onto hot headers is a terrible troubleshooting method.