Cummings long-block purchase.

dukeboy_318 said
Early 24 valves have that issue as well. Cummins updated the timing cover design in late 1999, but I’ve seen KDP issues on common rails and even the 6.7, albeit much fewer. Still he’s got it apart and the kits stupid cheap so May as well

Interesting. I was under the impression that they solved that issue with the 24v and never looked back