Upgrade your GM 6.6L Duramax with this CAT Fuel Filter Adapter Kit, designed to improve filtration efficiency while increasing engine protection. This bolt-on solution allows you to run a 2-micron CAT filter, replacing the factory filter without requiring major modifications. This kit fits 2001–2016 Chevrolet and GMC trucks equipped with LB7, LLY, LBZ, LMM, or LML engines.

Whether you drive a 2001 LB7 or a 2016 LML, this adapter is a proven solution for better fuel system reliability and longer injector life. The included filters are interchangeable with the trusted CAT 1R-0750 filter. Easy installation and included hardware make this kit a must-have upgrade for any Duramax owner who demands high-quality filtration.