Duramax 6.6L '01-'04 (LB7)

8th Digit of VIN:  1


The first of the Duramax trucks to hit the market.  No emissions equipment on these except for California trucks, which had an EGR.  The same EGR was then used on LLY trucks.  These are great trucks and get the best fuel mileage out of all the years.  Watch out for those clogged injectors though!