cummins cat fuel filter | eBay Find great deals on eBay for cummins cat fuel filter. Shop with confidence. Skip to main content. eBay Logo: Shop by category. Fit 2004-2007 Dodge Cummins 5 CAT Fuel Filter Adapter Kit Black. Brand New · Unbranded. $60. Was: Previous Price $75. or Best Offer. Free Shipping. 19% off. The Sinister Diesel CAT Fuel Filter Adapter For GM Duramax 2004.5-2007 Dodge Cummins 5. The Sinister Diesel CAT fuel filter adapter allows you to install a 2 micron CAT fuel filter without any major modifications. This kit is made for 2004.5-2007 5 Cummins with fuel pump in the fuel tank. This kit will not work with trucks that have the fuel pump mounted onto the factory fuel filter bowl.