The Donaldson water separator spin-on fuel filter effectively removes particulate matter and water to ensure superior fuel purity. It includes a post seal to enhance leak prevention and increase reliability. The filter is equipped with a sensor port thread, enabling advanced diagnostic capabilities. Its spin-on design allows for quick replacement, minimizing engine downtime. Built to withstand harsh environments, it is specifically designed for seamless integration with Blue Bird buses and optimized for compatibility with Caterpillar and Cummins engines.