Here’s what I did: I bought a “33T” from this site: https://www.stevensinstrument.com/product-page/s-33-hose-assembly-and-parts
The male “engine side” is 3/8-16 (OMC gearcase thread), and the female side of this fitting is standard 1/4″NPT…from there you can do anything: whip hose, Tee fittings, add a schrader valve, pressure gauge, etc. ….basically anything that’s NPT. YOu can custom engineer anything you want.
