DESCRIPTION The Donaldson P550908 Fuel Filter Cartridge works hard to remove harmful contaminants from your fuel system in your 2007.5-2009 Dodge 6.7L Cummins. Help prevent premature injector and pump wear by delivering clean fuel to your engine. When you demand Donaldson for your filtration needs, you get more than just a spin-on or cartridge filter. You have confidence that you are using a brand name the OEMs trust. With Donaldson filters, you get both quality and value.