Bulkhead Fittings & Plumbing Accessories

The Professional Way to Route Your Performance Lines

A truly professional build is defined by how the plumbing is routed through the vehicle. At AN Fittings NZ, our Bulkhead Fittings and Accessories are the essential components for safely and neatly passing fluid lines through firewalls, fuel cell covers, and body panels. Using a bulkhead fitting eliminates the risk of hose chafing against sharp metal edges and provides a solid mounting point that prevents system vibration.

Beyond the fittings themselves, this collection includes the hose separators and P-clips needed to organize your plumbing, ensuring your engine bay looks as good as it performs.

Safe Routing & Secure Mounting Solutions

Whether you are building a custom fuel system or an intricate cooling loop, we provide the hardware for a "concours-level" finish:

  • Bulkhead Unions: Available in straight, 45°, and 90° configurations (from -3AN to -20AN). These fittings feature a long threaded section designed to pass through panels and be secured with a bulkhead nut.

  • Fuel Cell Bulkheads: Specifically designed for fuel tank lids, ensuring a vapor-tight seal for fuel pumps and return lines.

  • Bulkhead Nuts & Washers: Precision-machined aluminum nuts to secure your fittings. We recommend using our specialized bulkhead washers to distribute pressure evenly on thinner panels.

  • Hose Separators & Clamps: Keep your lines parallel and prevent them from rubbing together. Our billet aluminum separators are available for all hose diameters, providing a secure and aesthetic mounting solution.

  • P-Clips & Line Mounting: Essential for securing long runs of hose along the chassis, ensuring they stay clear of moving suspension parts and heat sources.

Built for Precision & Safety in NZ Motorsport

When passing a fuel line through a firewall, there is no room for error. Our Speedflow bulkhead components are CNC-machined from 6061-T6 aluminum and hard-anodized for long-term durability in the harshest environments. Whether you’re preparing a car for MSNZ logbook inspection or simply want the cleanest possible street build, our accessories provide the security you need.

Organize and secure your build with our premium bulkhead range. Shop below for fast delivery to workshops and enthusiasts across New Zealand.