if you need to lookup or cross reference an oil/air filter or belt, use one of these sites. plug in your manufacturers part number and it will cross to theres and all filters applicable as the gates site does for belts and such. nothing like being able to go to one of the local autoparts stores and get a good quality filter or belt thats usually always in stock and cheaper rather than having to wait or pay from a supplier. the fram site will give you all filter numbers so you are not limited to supplier.
oil filters
http://www.wixfilters.com/Lookup/filterlookup.aspx
http://www.framcatalog.com/Application.aspx?b=F
belts
http://www.gates.com/all-search-tools/automotive-interchange-search-results