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Cummins/68RFE Reliability - how many miles?

3767 Views 51 Replies 17 Participants Last post by  jwolfe11
Thinking of buying a 2019 2500 CCSB 4x4 with the 6.7 Cummins 68RFE and 82k miles. I keep hearing the trans is the weak link on these trucks - is that true? How many miles are folks getting before having issues?

Are there any other common issues on the newer 6.7 Cummins? I haven't had a Cummins since my dad's 1994 24-valve model from way back in the day.

Thanks in advance!
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Got it. Thanks all!

Are there any other weak points in the engine? GM L5P that I currently have has injector connector pigtails and NOX sensors, which will leave you stranded somewhere. Anything like that on the 6.7 Cummins that's common? I know anything can fail, but very few L5P motors make it to 150k without some injector issues or NOX sensor issues. I'd like something that's less prone to leave me looking for a dealer in the middle of nowhere.
They're all garbage and they all have flaws. There is no perfect solution.
Long term reliability comes down to diligent maintenance and ownership, not the name on the door (unless it's Toyota).
Find the truck with the lowest miles and most documented maintenance.
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