6AN to 2AN(1/8)NPT Adapter 45

The 6AN to 2AN(1/8)NPT Adapter 45 from REDHORSE PERFORMANCE is a precision hydraulic fitting engineered for fuel system, coolant line, and brake fluid applications in high-performance and modified vehicles. This adapter bridges two incompatible hose standards—converting a larger 6AN (AN6) line to a smaller 2AN (AN2) port with 1/8" NPT threaded connection—making it indispensable when integrating aftermarket fuel rails, carburetors, coolers, or catch cans into existing engine bay configurations. Whether you're building a carbureted hot rod, upgrading a vintage muscle car's cooling system, or installing auxiliary fuel delivery components, this 45-degree angle fitting optimizes hose routing around tight engine compartments.

Constructed from aluminum alloy and precision-machined by REDHORSE PERFORMANCE, this adapter features a 45-degree swept bend that reduces installation stress on hose assemblies and minimizes the risk of kinks or crimping at junction points. The AN fitting standard ensures accurate SAE J518 compatibility, while the 1/8" NPT female port accommodates gauges, sensors, or secondary components with consistent thread engagement and leak-free sealing. The compact footprint—measuring just 2.75 by 3.8 inches—allows installation in confined spaces without requiring custom exhaust relocation or hood clearance modifications, and the lightweight 0.06-pound construction contributes virtually nothing to overall vehicle weight.

Mechanics and enthusiasts performing fuel system upgrades, EFI conversions, or cooling system customizations will find this adapter critical for step-down transitions in billet aluminum fuel blocks, distributor blocks, or manifold-mounted accessory ports. The 45-degree angle is particularly valuable in street and competition applications where hard-line and hose routing must navigate engine bay obstacles. Installation requires standard hose crimping tools and AN-compatible hose; wrench flats accommodate both SAE wrench sizes and fuel system-specific tools, ensuring secure torque application without component damage. Verify 1/8" NPT thread compatibility with your receiving component before ordering to confirm proper fit in your specific modification project.