This is the UPPER piece of the valve cover only. It allows you to run WITHOUT the crank case vent filter. It does not include the lower cover or any gaskets.
We recommend that you re-route the breather tube so that it no longer goes into the inlet of the turbo, as this cover may pass more oil out of the tube compared to stock. This is a genuine Cummins product.
Cummins product number: 4936347.