3/4in NPT To #16AN Hose

The 3/4in NPT To #16AN Hose fitting by CSR PERFORMANCE is an essential adapter for fuel system conversions, custom engine builds, and high-performance vehicle modifications. Whether you're upgrading to an aftermarket fuel injection system, installing a turbocharger fuel supply line, or transitioning from OEM hydraulic fittings to modern AN-standard plumbing, this adapter bridges the gap between legacy NPT (National Pipe Thread) ports and contemporary #16AN hose connections. Serious builders and mechanics rely on proper hose fitting standards to ensure pressure integrity and prevent fuel leaks in demanding engine applications.

This fitting converts a 3/4-inch NPT threaded port into a #16AN hose barb connection, allowing you to mate rigid NPT ports (commonly found on fuel blocks, pressure regulators, and factory engine blocks) with flexible braided stainless steel AN hose and fittings. The #16AN size accommodates high-volume fuel delivery applications without excessive pressure drop, making it ideal for turbocharged, supercharged, and naturally aspirated high-output engines. CSR PERFORMANCE fittings are precision-machined from durable aluminum or steel, designed to withstand sustained fuel pressure up to competition-grade levels while resisting corrosion and thermal cycling inherent in engine bay environments.

This adapter is ideal for fabricators, engine builders, and DIY enthusiasts upgrading fuel systems on street rods, race cars, and late-model swaps where OEM fuel routing must be rerouted through aftermarket fuel rails or external fuel systems. Installation requires proper NPT thread sealant (PTFE tape or liquid thread sealant) on the male NPT end and secure hose clamps on the #16AN barb side to prevent weeping under pressure. Compatible with any standard #16AN braided hose and fittings, this compact adapter (4 x 2 x 7 inches, 0.16 lbs) is lightweight enough for race builds while robust enough for street-driven durability.