#3 X 1/8 NPT Tee On The Run

The #3 X 1/8 NPT Tee On The Run is a precision fluid-line adapter fitting engineered for high-performance racing, fuel systems, and hydraulic applications where space and reliability are critical. Manufactured by Triple X Race Components, this tee junction allows you to split or combine three separate fluid lines with secure, leak-free connections. Whether you're building a custom fuel distribution system, integrating a secondary fuel pressure regulator, or designing a complex coolant or brake line architecture, this fitting serves as a dependable junction point in demanding motorsports and off-road environments.

This adapter features a three-way tee configuration with #3 AN (Army-Navy) male ports on two branches and a 1/8-inch NPT (National Pipe Thread) male port on the third, providing flexibility to integrate both standard AN fittings and NPT-equipped components into a single junction. Constructed from lightweight aluminum and finished in durable black anodization, the fitting resists corrosion, anodic oxidation, and fluid degradation while maintaining a compact footprint (1.95 × 0.65 × 2.95 inches) that fits tight engine bays and chassis cavities. The anodized surface enhances wear resistance and provides a professional appearance in exposed plumbing applications. Weighing just 0.03 lbs, it adds negligible mass while delivering the structural integrity required for high-pressure fuel, coolant, and brake systems.

Race teams, custom fabricators, and performance enthusiasts benefit most from this tee adapter when designing modular fuel systems, integrating aftermarket fuel pressure gauges, or routing secondary cooling circuits in turbocharged and supercharged engines. Installation is straightforward: secure each port with appropriate AN or NPT-threaded hoses and fittings, ensuring proper torque specifications per your system's pressure rating. The mixed AN/NPT configuration makes it ideal for systems combining OEM NPT sensors or components with modern AN-line infrastructure, eliminating the need for separate adapter chains. Compatible with fuel, oil, coolant, and low-pressure hydraulic applications, this fitting delivers the versatility and durability Triple X Race Components is known for in serious motorsports environments.