Replace your old and dirty air filter with a Drop-In Air Filter for your 2003-2004 Dodge 5.9L Cummins. XDP carries drop-in air filters from manufacturers like S&B Filters, AFE, K&N Engineering, so you can find the best one to meet your vehicle's needs. In most cases an oe-style drop-in air filter will be made with paper filter media, where an aftermarket air filter typically features a synthetic media, or a cotton gauze design that may be dry or oiled. The air filter is a critical component in your vehicle and is designed to keep dust, debris, and contaminants out of your engine. A drop-in air filter is named after the simple installation as it simply drops into the factory airbox in most applications.
