Heavy duty construction keep fuel clean and engines running at maximum efficiency Free of both particulate and water contamination Enables the engine to operate more efficiently and achieve better fuel mileage Includes furnished and integral gasket For Cummins engines BF1212 Spin-On Fuel/Water Separator is designed to provide maximum efficiency and protection for the engine. It is designed for easy installation and replacement, minimizing downtime and maintenance efforts. It meets OEM requirements and also includes a furnished integral gasket.