HELLO
I HAVE A 2004 5.3L SILVERADO .I'M PUTTING IN A ELECTRIC FUL PRESSURE GAUGE. I'M LOOKING FOR A FITTING THAT GO ON WHERE YOU TEST THE FUEL PRESSURE JUST BEFORE IT GO INTO THE FUEL RAIL.. I BELIEVE IT'S 1/4 HOSE THREAD SIZE..OR FLARED .. AND THE SENDING UNIT IS 1/8 IPS OR NPT..HAS ANYONE ELSE DONE THIS .IF SO WHAT DID YOU DO ? OR WHERE CAN I GET THE FITTING FOR IT ?? THANKS

 

I don't know but TURN OFF CAPS LOCK PLEASE.

Did you try the search button?

I'm sure somebody here knows.

 

You have to use a -4an female fitting to 1/8npt male fitting and then you have to use a 1/8 female to 1/8 female coupling. If you can find a -4an female to 1/8npt female, that would be better , but I never could find one. The parts I used are Earl's Fittings, part number 916104ERL and 991001ERL.