I forgot to tell you, but you are going to have to bleed the system after you are done, because of all the diesel lost when you took off the cover. Another thing look at the rubber gasket that was behind it and make sure it looks o.k., you may need to replace it. Mine leaked real bad when I put it back, I ended up using gray gasket mat. that I got at Napa, the kind that looks kind of like cardboard. It won't leak like the rubber with this new diesel. Good luck.