8AN to 3/8 EFI Adapter Quick Disconnect Black

The 8AN to 3/8 EFI Adapter Quick Disconnect by REDHORSE PERFORMANCE is a critical fuel system component for builders integrating modern electronic fuel injection systems into custom engine swaps and high-performance applications. This adapter bridges the gap between -8 AN (American National) hose fittings and 3/8-inch EFI port sizes, allowing seamless compatibility between fuel rails, injector bundles, and fuel supply lines without costly custom fabrication. Whether you're converting a carbureted engine to EFI or upgrading fuel delivery on a forced-induction build, this quick disconnect simplifies installation and enables future fuel system modifications without permanent connections.

Precision-engineered from aluminum alloy and finished in corrosion-resistant black anodizing, this adapter features a compact design measuring 2.75 × 1 × 3.8 inches with minimal weight (0.12 lbs) that won't add bulk to tight engine bays. The quick-disconnect mechanism allows rapid fuel line separation for maintenance or system reconfiguration without spilling fuel or requiring special tools—essential for track-day builds and street cars needing frequent tuning adjustments. The 8AN inlet accommodates standard braided stainless steel fuel hose with AN crimped fittings, while the 3/8-inch EFI outlet threads directly onto factory or aftermarket fuel rails and EFI components, ensuring reliable pressure integrity across all fuel system operating ranges.

This adapter is indispensable for LS engine swaps, turbocharged builds, and standalone ECU fuel system configurations where OEM fuel delivery ports don't align with modern hose standards. Installation requires no modifications to existing fuel rails or pump assemblies—simply connect the -8 AN hose from your fuel pump or regulator, thread the 3/8-inch side onto your EFI rail, and secure using the integrated quick-disconnect collar. Experienced tuners and fabricators trust REDHORSE PERFORMANCE adapters for their durability under sustained fuel pressure and compatibility with both carryover and purpose-built EFI systems.