Just an fyi, you can also pick up Baldwin brand filters at any Peterbilt dealer or the Cummins Filtration (a.k.a. Fleetguard) brand filters at any Kenworth dealer.
Baldwin site - http://www.baldwinfilter.com/
Cummins Filtration - http://www.cumminsfiltration.com/html/en/index.html
Not knocking the Wix brand...just adding to the information is all
Where we've been:
2000 Rockwood Roo M-18 Hybrid
2006 Dodge Ram 2500 Auto 5.9 Diesel
Gone but not forgotten -1986 Rockwood 1003 PUP