Fuel Filter housing on LB7 Duramax

[Skinny_Man]

I had to replace the fuel filter housing on my truck last week. The one that GM says fits from 01-03 costs over $500. The one for trucks from 04-12 is just over $100. I decided to see if the later model housing would work. The only difference in them is how the metal pipes are pointing. I had to change the 2 fuel lines because the old ones were too short. Total amount spent was just under $135.

[Skinny_Man]

I did the rebuild and it didn't fix anything. Found out the problem was the check valve inside the housing that was allowing the system to lose prime. That part is not available from GM or the aftermarket. 1st housing lasted 267,000 miles. Maybe this will also.

[rsday75]

Was the old one leaking? That is what happened to mine.
Found a kit online with all new seals. Took it apart, and replaced them all and no more leaks. $15 or so.