Gotta throw a big thank you to the folks at DieselSite! I got a new 6.0 HPOP from them when mine just couldn't maintain adequate pressure anymore. The pump they sent is so beautiful it s too nice to cover up! Quality reeks at every view of this thing! Its a tough job on a truck with over 200,000 miles and never been wrenched on. Lotta seized bolts, ( turbo :-/) but well worth the effort. I was losing power but no misfires, just low pressure from pump. New pump made motor so quiet, smooth, fun again! Would definitely recommend you spend the extra $$ if you need a pump in 03-04 6.0.

 

I wish I would of know about this pump when I replaced mine last year.