First off thank you guys in advance for any information you give . I have a 2004 Harley Davidson Fatboy and what I'd like to do is put a oil pressure gauge but keep it for the idiot light will still work I have researched with and I (EDIT) with research . I looked up online oil pressure kits but can't tell if any will work and besides the Lines look chintzy. I'd like to try to find it all piece by piece if anybody can tell me what the pieces are called that I all need with a metal line and the size threads I would greatly appreciate it .. Thank you .