I'm ready to do my valve adjustment after reading all this helpful info. The problem is that cummins won't talk to me unless I have part #s. Does anyone have these part #s for both the gasket and top screws? I'm sure cummins is the best and cheapest place to get these.

 

I don't know the numbers, however I got mine at NAPA. The price was somewhere around 21.00 if I recall.<br> <br>

 

Here are a few cummins numbers<br>3902666-valve cover set,standard<br>3930906-individual gasket-gray marine<br>The set should come with the o-rings, not sure on individuals