AN Tee -4

The ALLSTAR PERFORMANCE AN Tee -4 is a three-way adapter fitting designed for custom fuel, oil, and coolant line routing in high-performance engine builds and street rod projects. This compact tee junction serves as a critical distribution hub when you need to split or combine -4 AN hose runs without adding bulky manifold blocks to your engine bay.

Machined from aluminum for lightweight durability, the AN Tee -4 features AN4 port sizing with precision threads that are compatible with standard AN fittings. The three-way design allows one inlet line to branch into two outlet paths, or conversely, two sources to merge into a single output line—essential for applications like dual thermostat housing feeds or proportional bypass systems.

Professional fabricators, engine builders, and enthusiasts restoring muscle cars, hot rods, and late-model performance vehicles rely on this adapter to execute custom plumbing layouts without expensive custom solutions. Its compact 2.25 × 1.4 × 4.1-inch profile minimizes packaging constraints in tight engine compartments while the 0.04-pound weight contributes negligibly to overall system mass.