1011137307

The 1011137307 serves as a vital primary fuel filter and water separator (fuel pre-filter) for Weichai WP series engines. Designed to tackle poor fuel quality, it aggressively separates free and emulsified water while capturing large particulate matter from the diesel flow. This initial stage of purification is crucial for preventing water-induced corrosion and protecting downstream fine filters and high-pressure injection components in heavy commercial trucks.