Compression Fitting Size

[Duallydog]

I am one compression collar short of being able to finish installing my ISSPRO fuel pressure gauge. Does anyone happen to know exactly what size these are? I haunted ACE one day with a piece of the tubing and 1/8th still seemed too big but it was the smallest they had.

 

[duallyspeed]

I think i have one in the garage? Is that the one with the diaphragm? I am thinking 1/8 th ntp.I can check but i am unsure what pc your looking at.

 

[cummins cowboy]

should be 1/8 inch. thats what mine is

 

[Duallydog]

It is the one for the small nylon hose running from the fuel sending actuator to the gauge itself.

 

[duallyspeed]

Is this the one you need?

 

[duallyspeed]

OR is it this one?

 

[duallyspeed]

Sorry this picture is better.

 

[joefarmer]

Sorry this picture is better.

That's 1/8" NPT.

 

[joefarmer]

Is this the one you need?

That one appears to be 3/16th compression, is it?

 

[duallyspeed]

It is the one for the small nylon hose running from the fuel sending actuator to the gauge itself.

sounds like you need 1/8 ntp..yes 3/16ths

 

[Duallydog]

Hmmm, I may have to hit up ACE again.

 

[joefarmer]

Mine were 1/8" tube to 1/8" NPT connectors. I bought 5 at a time since I always use them.