AN Flare Adapters & Unions

The Standard for High-Pressure Performance Plumbing

At the heart of every professional fluid system is the AN flare adapter. Designed to provide a reliable, metal-to-metal seal without the need for thread tape or sealant, the 37° flare (JIC/SAE standard) is the industry benchmark for high-performance automotive plumbing. At AN Fittings NZ, we stock a massive range of flare adapters designed to convert almost any automotive port into a high-flow AN connection.

Whether you are adapting a fuel rail, an oil cooler, or a custom-built surge tank, our adapters provide the precision-machined threads and seat surfaces required to keep your system leak-free under extreme pressure and vibration.

Precision Adapters for Every Configuration

Our collection is curated to solve the most common "port-to-hose" challenges encountered in the NZ performance scene:

  • Male-to-Male Flare Unions: The essential joiner for connecting two hoses or creating a junction point. Available in sizes from -3AN to -20AN.

  • Flare to NPT & Metric: Specialized adapters that allow you to transition from tapered pipe threads or Metric OEM ports into a standardized AN system.

  • Swivel Flare Adapters: Featuring a female swivel end, these allow for easy installation in tight spaces where the fitting needs to be clocked at a specific angle without twisting the hose.

  • Billet 6061-T6 Construction: Our Speedflow flare adapters are CNC-machined from high-tensile aluminum, offering superior strength and a "full-flow" internal design that minimizes pressure drops.

  • Anodized Protection: Available in classic Blue, Stealth Black, and Polished finishes, providing a durable barrier against corrosion and "thread galling."

The Trusted Choice for NZ Motorsport & Street Builds

In a high-pressure system, there is no room for "near enough." A poorly machined flare is the most common cause of leaks in performance plumbing. That’s why we source only the highest quality adapters with precision-cut 37° seats. From 1/4" to 1-1/4" diameters, our range provides the structural integrity required for everything from street-legal restorations to 1000hp+ drag racing applications.

Build your system on a foundation of quality. Explore our full range of AN flare adapters below and enjoy fast shipping across New Zealand.