Yes the 12D, don’t believe the ratings and the factory pump puts out more than 35 gph from what I’ve seen. Every customer truck that has come in that has had that pump had fuel delivery issues. You also don’t want to run both a mechanical and electric pump, the mechanical pump can have the diaphragm rip from too much inlet pressure and fill your crankcase with fuel. I doubt the 12d will do that, but generally want to avoid it.
You can pick up a Mr gasket 105p for under $100 but you will need a good regulator. A proper e pump conversion costs money, so you may be better off replacing the mech lift pump if that isn’t performing properly. But if you’re having to run a little e pump and mech pump and you’re still having issues, I bet there’s something else going on.
You can pick up a Mr gasket 105p for under $100 but you will need a good regulator. A proper e pump conversion costs money, so you may be better off replacing the mech lift pump if that isn’t performing properly. But if you’re having to run a little e pump and mech pump and you’re still having issues, I bet there’s something else going on.
