All the research I've done indicates the correct P/N as 3944833, but when I went to Cummins they gave me a set of 3936453 for my 2002 HO. Did the second number supersede the first? I've seen both listed for 1998-2002 so I can only assume they are interchangeable. Is there any PHYSICAL difference between each, i.e. internal diameter? Thx
what I was told was the newer connector tubes are a little larger inside diameter and work fine on all the second gens. I believe it is the same ones used on the third gens. Just verify with Cummins to be sure.
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