I have a 2007 road king the oil light stays on
I have replaced the oil pump, checked the switch, checked the valves, and drained the oil pan.
What else do you think needs to be done? I'm at a loss right now

I emailed your question to my brother, a Harley owner for years and a long-time mechanic. Stay tuned!

From my brother --

Temporarily remove pressure switch and check oil pressure with a manual gauge to verify pressure. If it has pressure take electric gauge wire and unplug with key on (not running) and see if oil light changes when wire is not connected and then when touching ground. If no difference, check for faulty wiring. (The only thing the question doesn't state is whether you actually put oil back in the engine .... Did you???)

(More from my brother: He can do the manual gauge thing last but would hesitate to run it with no oil pressure. The wire check doesn't need it to be running.)