ok I'd like to be able to know what my oil pressure is. harley has a oil pressure test kit (HD-96921-52D) which consist of a gauge, with hose and banjo fitting to temporarily replace the oil pressure switch and check the pressure. now I'm wondering if there is a banjo fitting to put on there and run a oil line and gauge to someplace visible while riding?

 

so far no

 

You could install a T-fitting and then run your own gauge along with the switch. That's what I plan to do.