10AN 內擴轉 3/8" NPT 外螺紋轉接器

Installed this on my fuel rail and the 3/8" NPT threads bit perfectly without any wobble. The machining on the flare end is also smooth, no burs to worry about.

Machining is clean and the threads engage without any binding, which is exactly what you want when you're fighting for space in a tight fuel line setup. Took the guesswork out of stepping down from 10AN to that 3/8" NPT port. Solid little piece that does its job.

The adapter fit perfectly between my fuel rail and existing AN line — no leaks at all on first try. The hex section gave my wrench plenty of bite for tightening without rounding anything off.