16AN STR Male Bulkhead Black

The 16AN STR Male Bulkhead Black by REDHORSE PERFORMANCE is an essential fitting for custom fuel system builds, turbo setups, and high-flow hydraulic applications in performance vehicles. Designed for mechanics and enthusiasts tackling engine modifications where reliable AN (Army-Navy) line connections are critical, this straight male bulkhead fitting serves as a wall or panel-mount adapter that routes pressurized fluid systems through firewall or chassis barriers. If you're upgrading fuel delivery on a turbocharged engine, installing a remote fuel cell, or fabricating custom cooling or power steering circuits, a quality 16AN bulkhead fitting is non-negotiable for both safety and system integrity.

The 16AN designation indicates a nominal 1-inch OD tube compatibility, with a SAE straight-thread male connection rated for the full flow capacity of a 16AN system—typically 150+ PSI depending on application and fluid type. The bulkhead design allows you to thread the fitting into a pre-drilled hole with the male end protruding into the engine bay or component area, creating a sealed pass-through that prevents fluid leakage at pressure boundaries. REDHORSE PERFORMANCE's black anodized aluminum construction provides corrosion resistance and a clean OEM-style appearance while maintaining the structural rigidity required for high-vibration environments like engine bays. The straight (STR) configuration means zero degree offset, ideal for direct in-line routing without bends or elbows consuming chassis real estate.

Professional fabricators and weekend warriors building twin-turbo fuel systems, monster energy drink-fueled LS swaps, and custom cooling loops rely on REDHORSE bulkhead fittings for leak-free panel penetrations and clean system architecture. Installation requires drilling an appropriately sized hole (typically 1.125" or larger depending on your panel thickness) and torquing the fitting to specification—verify your system's rated thread size and pressure rating before assembly. This fitting is fully compatible with standard 16AN hose and hard-line tube adapters, making it a go-to component in any serious performance plumbing project where reliability and repeatability matter more than improvisation.