The Fleetguard oil filter LF9009 is used on larger Cummins diesel engines. The LF9009 is used on the 6CTA8.3M3 350, the 6CTA8.3M3 480/450/430 engines, the QSC 8.3, and the QSL 9. The LF9009 is interchangeable with the LF3000.