I got an invitation to go check out the 09 trucks down at the local dealership so this morning I did and one of the biggest changes I saw was that they are running a new fuel filter. When I asked about it they said it's now a dual filter with greater filter area to strip away water as well as a secondary fuel filter with a smaller 5 micron rating. (Our current filter is a 7 micron) They said they expected them in some time in May and that they retrofitted to all Cummins 6.7L engines 07.5 and later.

When I get a part number I'll let you know.

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2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10