Broke down in Lake Havasu-No 4 Fuel Line Leak

I've always told everyone I know with the 5.9 CR's to keep a #4 line and the tools in the glove box. It's not really an "if" but a "when" situation. Travis is right on about the newest versions. The line has been changed twice. The first one, 4988808, also had issues, but the new one seems to be good. It's a 5289447.

Is this fixed for the 6.7, or should I toss one in my toolbox as well? I hate doing anything makeshift with high pressure lines.
 
The 6.7 lines are different than the 5.9's. I have not seen a failure trend on any of the 6.7 lines like the #4's on the 5.9's.
 
i have a little 6"x8" sealed pelican case i keep in the truck box... it has that fuel line, an FCA, RP sensor, rail cap, gearator and an 8 ball of coke for when im ready to drive it off a cliff and flee to mexico!
 
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