The Case IH FF5638 is a genuine OEM spin-on fuel filter designed for optimal fuel system protection in Case IH JX and Farmall series agricultural tractors. With an outer diameter of 76mm, a length of 100mm, and an M16x1.5 thread, this filter effectively removes contaminants from the fuel, ensuring clean fuel delivery to the engine. It is a direct replacement for New Holland 87803196 and 87803197, and cross-references to Fleetguard FF5638, Donaldson P550900, and Baldwin BF7924.