Sinister Diesel knows how critical clean diesel fuel is, so they made replacement bolt-on 2-micron Caterpillar filter kits to provide that extra reassurance. This filter and adapter kit for the 2001-2016 Duramax (2500 and 3500) trucks comes with everything you'll need to upgrade to an ultra-fine 2-micron fuel filter. The spin-on filter improves the efficiency and capacity of the engine's filtration system, reducing long-run maintenance costs while also optimizing the life of your fuel system and injectors. The adapter is made from CNC billet aluminum with Sinister's signature blue anodized finish. The kit includes a fuel filter adapter base, the 2-micron fuel filter, and all the hardware and o-rings for installation. For more information, call 855-792-8292 or click here.