Just picked up a Baldwin PF7977 from a local auto parts store. $17.55 including tax.

 

I pay about 1/2 that at a local Peterbuilt outlet.

 

As it has been stated the Baldwin PF7977 and Fleetguard F19856 (new version of F19800E) are the only two filters that meet OEM specs. In 06 Dodge changed the requirement from 10 microns to 7 microns absolute. WIX sells 10 and 7 micron nominal filters, not the OE spec; also there is rumor that WIX will not verify that their filter is also a water separator.

 

I e-mailed Wix back on Sept 9, 2008 asking them about their fuel filter if it was a water separator & if it met OEM specs. I still have not got a reply back from them. Their filters may be ok but their customer service sucks!

 

I bought a Baldwin PF7977 from Ebay from $12 shipped to my door.

Decent enough price for me and for the quality it offers.

 

I was able to buy my Baldwin filters near by and with tax it was $3.50 less per filter then what it would cost to buy them on line and paying shipping

 

I bought a WIX at the parts store to carry as a spare before I was aware that it's not up to snuff. Will it work in the earlier year models? I know a few guys that could use it if it'll work with earlier models.

 

IIRC your Wix filter should be Ok for 2002 and older trucks.