The Cat 4220675 Fuel Filter Assembly is a genuine Caterpillar standard efficiency fuel filter designed to protect your engine's precision fuel injection system by effectively eliminating contaminants from the fuel. Featuring a cellulose media type and a gasket seal, this primary fuel filter has an overall length of 129.54 mm and an outer diameter of 78.74 mm, with a 1-14 UNS-2B thread size. It ensures optimal fuel system performance and extends engine life across a wide range of Caterpillar machinery.