K&N Universal Rubber Filter-Round Tapered 4in Flange ID x 8in Base OD x 6.625in Top OD x 8in HK&N Black Universal Air Filters are made from Dryflow oil free synthetic media. These low restriction clamp on air filters are designed and manufactured for a wide variety of applications. When dirty they can be easily washed using K&N synthetic air filter cleaner. This Part Fits: Year Make Model Submodel 2003,2005 2009 Dodge Ram 2500 Laramie 2003 2004,2006 2009 Dodge Ram 2500 SLT 2006 2007 Dodge Ram 2500 Sport 2003 2004,2006 2009 Dodge Ram 2500 ST