#3 Bulkhead Tee-On the Run

The #3 Bulkhead Tee-On the Run by FRAGOLA is a precision hydraulic and fuel line fitting designed for high-performance fluid systems that demand reliable multi-directional flow control. This bulkhead tee configuration is essential in custom fuel systems, hydraulic brake setups, and transmission cooler applications where three separate circuits must merge or distribute flow from a single mounting point. Purpose-built for technicians and enthusiasts who require compact, leak-free connections in tight engine bay environments, this fitting eliminates the need for multiple separate adapters and reduces system complexity.

Constructed from aluminum and finished in distinctive blue anodizing, the #3 Bulkhead Tee features three AN male ports—all sized at 3 AN—allowing equal flow distribution or combination across three separate lines. The aluminum construction delivers a lightweight solution without sacrificing strength, while the anodized finish provides superior corrosion resistance and a professional appearance that resists oxidation in engine compartments exposed to moisture and temperature cycling. The bulkhead design allows for panel or manifold mounting, creating a permanent, vibration-resistant installation point that withstands the demands of high-pressure fuel and hydraulic systems operating at sustained pressures.

This fitting is ideal for custom fuel system builds, performance hydraulic brake installations, and transmission cooling circuits where space is limited and three-way flow control is critical. The 3 AN thread size (common for mid-range fuel and hydraulic applications) pairs seamlessly with standard -3 hose and adapter ecosystems found in street rods, race cars, and high-performance street vehicles. Installation requires proper AN hose assembly technique and appropriate thread sealant; the compact 4.15-inch overall length ensures fitment in congested engine bays, making it a go-to solution for fabricators building integrated fuel and cooling manifolds.