#3 Female An To 1/8in Npt

The #3 Female AN to 1/8in NPT fitting by EARLS is an essential hydraulic and pneumatic adapter for builders and mechanics working with custom fuel, oil, and coolant systems. This connector bridges two industry-standard port types—allowing you to integrate components that use different thread specifications into a unified assembly. Whether you're fabricating a custom fuel rail, connecting gauges to monitoring systems, or adapting OEM and aftermarket parts in high-performance builds, this adapter eliminates the need for multiple hose configurations or incompatible component sourcing.

The fitting combines a #3 female AN (Army-Navy) port with a 1/8-inch NPT (National Pipe Thread) male outlet, enabling seamless connection between motorsport-grade hose assemblies and industrial plumbing-style ports found on manifolds, sensors, and regulators. EARLS fittings are manufactured to tight tolerances with corrosion-resistant materials, ensuring reliable pressure containment and leak-free operation in demanding environments—from street-driven performance cars to competition vehicles and custom engine builds. The compact design (0.75 x 0.65 x 2.85 inches) fits tight engine bay layouts where space constraints challenge installation.

Mechanics and fabricators benefit most when mixing OEM sensors (often NPT-threaded) with aftermarket fuel systems, turbo plumbing, or custom gauge setups that standardize on AN sizing. This adapter is compatible with standard braided stainless steel hose assemblies (using -3 AN fittings on one end) and allows direct connection to NPT-ported components without requiring secondary adaptors or thread-seal tape workarounds. Installation requires only basic wrench work—ensure proper sealing on the NPT side using appropriate thread sealant, and torque the AN side per EARLS specifications to prevent hose movement and fluid weeping under pressure.