AN Tee -3 with 1/8 NPT on Branch

The AN Tee -3 with 1/8 NPT on Branch from Allstar Performance is a critical hydraulic and fuel system adapter designed for custom engine builds, race car plumbing, and high-performance vehicle modifications. This specialized fitting allows you to branch off secondary lines from a primary AN circuit while maintaining system integrity and pressure capacity. Whether you're routing coolant, fuel, or brake fluid in a tight engine bay, this adapter provides the precision connection points professional mechanics and hot-rodders demand for clean, reliable installations.

The AN Tee -3 designation refers to a -3 AN (Army-Navy) port size, a standard 3/16-inch line compatible with Allstar's extensive fitting ecosystem. The 1/8 NPT (National Pipe Thread) branch port enables connection to sensors, gauges, or secondary distribution without requiring a separate manifold block. Constructed from durable aluminum alloy, this tee fitting is lightweight at just 0.04 lbs, making it ideal for weight-sensitive applications like road racing or autocross vehicles. The dual-port configuration ensures balanced flow distribution while the NPT branch accommodates both male and female adapters, offering flexibility in system layout and component selection.

Professional builders, LS swap enthusiasts, and vintage car restoration shops rely on this fitting for fuel injection supply lines, turbo coolant circuits, and custom transmission cooling setups. Installation is straightforward—thread the NPT branch fitting with appropriate PTFE tape sealant to prevent leaks under pressure, then secure AN hose or hard-line connections using standard -3 push-to-connect or flared fittings. Compatible with both carburetor and fuel-injected systems, this adapter integrates seamlessly into Allstar's modular plumbing platform, ensuring your custom fuel or coolant system maintains OEM-quality reliability with custom-built aesthetics.