mercedes w123 280e gasoline m110 engine fuel pressure regulator replacement

[tiger280e]

this is my oem fuel pressure regulator.


I am interesting about this kind of fuel pressure regulator with gauge


there's a lot of brand for this item, mallory, tomei, sard MSD and others

the question is.,,technically,,,,can I use this as a replacement for my merc..?..I'm talking about the original one,,,I know there's so much around the fake brand,,,,and I'm doubt about the quality,,,that's not what I am talking about,,,

and another question,,,if I can use this as replacement,,,the unit has pressure gauge in it,,,,is this gauge have the same function as k jetronic fuel pressure test kit? to control the fuel pressure,,?..


the goal is, I just need indicator to check the fuel pressure as possible as I can,,,,,,,,and the last question, if I build the k jetronic fuel pressure kit, can I install them permanently on my car,,,?..

thank you and sorry for my english,,,,,