AN Wrenches Set O Six -4 AN to -16 AN

The AN Wrenches Set O Six -4 AN to -16 AN is an indispensable tool for automotive enthusiasts, professional mechanics, and high-performance engine builders who work with AN fittings and hose systems. AN (Army-Navy) fittings are the standard in fuel injection systems, nitrous oxide lines, oil coolers, and custom cooling circuits on modern performance vehicles. This six-piece wrench set covers the most commonly encountered AN sizes, making it essential for anyone building or maintaining fuel systems, turbo installations, or competition-grade powerplants.

Each wrench in this set is precision-engineered to grip AN fittings securely without rounding the fastener heads, a critical requirement when working with aluminum or soft steel components under high pressure. The set spans from -4 AN through -16 AN sizes, allowing you to handle everything from small diameter fuel lines to large-displacement nitrous feed lines and power steering applications. The compact design—weighing just 1.11 lbs and measuring 6.8 x 3.05 x 9.45 inches—keeps the set portable and garage-ready without sacrificing strength or accuracy in tight engine bay environments.

This wrench set is ideal for street rod builders, drag racers, and daily-driver enthusiasts upgrading fuel delivery, cooling, or brake systems. Whether you're installing an aftermarket fuel pump, running braided stainless AN hose for a restomod project, or troubleshooting a leaking hose connection on a turbocharged engine, having the correct wrench size prevents cross-threading and damage to expensive fittings. Mechanics and fabricators who regularly work with AN fittings will find this compact set indispensable for both bench work and in-vehicle assembly, eliminating the need to hunt for individual wrenches or resort to pliers that destroy fitting geometry.