I have been using a Fleetguard LF3000 filter for my 350 Cummins since I purchased it as per the WRV owners manual. I noticed yesterday that the Cummins manual calls for a LF9009. I called Cummins this morning wondering is I have done irrepairable harm to my engine by using the wrong filter. Cummins said the older versions of the ISC 350 can use either filter but as of 2002 they must us the LF9009. They said the difference is the LF3000 has a paper element and the LF9009 has a synthetic one. I am swithing to the LF9009 from now on.
Whew! I seem to have dodged another bullet.
Steve and Marsha Helland
Macy&Sara (Mini Schnauzer&Schneagle)
2000 Alpine 36FDS