Just got a new to me 2008 Ford chassis..Has there been a change in the air filter since my 1999 model..the ones I keep pulling up on computer are flat!!I haven't spent much time under the hood yet..
The best way is go pull the one out of your RV and write down the number. Now start making a file of all the part numbers so you will have a ready reference the next time you need a part. Most parts are available on line from places like http://www.summitracing.com/ and http://www.jegs.com/ and http://www.rockauto.com/ Bill