10/22/25 Cummins Valvetrain Noise TSB

[mbarber84]

Released recently.
(note that all model years are listed 2019-2026)

 

[Forceofwill]

I'm about 5,000m on my 25. Haven't heard a change yet. Hopefully it stays good.

 

[g00fy]

Good to know, my 2019 only has around 50k on it and, knock on wood, so far so good. However a TSB is only helpful for those still under warranty correct? Unless we're thinking maybe this is simply a precursor to a future recall or valve train warranty extension?

 

[endonver12]

Ahhh that makes way more sense to me then. No one has explained that part to me. I had a 2019 but I deleted it with 900 miles. So this 25 is a new ball game for me.

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[Trash Panda]

Ahhh that makes way more sense to me then. No one has explained that part to me. I had a 2019 but I deleted it with 900 miles. So this 25 is a new ball game for me.

192.168.1.1​

New ball game, same ball.

The valvetrain is largely identical.