Engine/Transmission (1998.5 - 2002) Fuel line size?

[LLewandowski]

I'm currently installing a fuel system on a cummins from tank forward . For specific reasons I'm installing stainless steel lines , and I want to make sure I buy the right size . Currently stock , but want to have enough fuel flow for whater might come . I see the boys with the mods going with what they call 1/2" lines . Is this 1/2" the ID or OD ?



thx a bunch

 

[NoSeeUm]

SS tubing is usually OD. That way it fits all the fittings with different wall thicknesses.



Jim

 

[REDDODGE]

Vulcan kit is 1/2" ID

 

[LLewandowski]

I understand the stainless sizes , I'm wondering when I see people say they run 1/2" fuel lines(which I assume would normally be steel?) is 1/2" refering to OD or ID?

 

[LLewandowski]

Vulcan kit is 1/2" ID

thats what I was looking for , TY .

 

[RClark]

If you run steel lines, keep them flat against the frame a much as possible. Then you will help keep the fuel cool as the frame would act as a big heat sink.