This aftermarket replacement fuel filter serves as a high-quality, compatible alternative for the MANN-FILTER WK9801NO, also commonly known as WK 980/1 NO. Designed to provide superior filtration, it effectively removes harmful contaminants such as dirt, rust, and debris from your fuel supply before they reach sensitive engine components. By ensuring a clean fuel flow, this filter helps protect fuel injectors, pumps, and other vital parts from premature wear and potential damage, thereby extending the lifespan of your engine and maintaining optimal performance. Regular replacement of the fuel filter is critical for preventing fuel system blockages, improving fuel efficiency, and ensuring reliable operation of your machinery. This robustly constructed filter features precise dimensions and filtration capabilities, including a height of 176mm, an outer diameter of 93mm, and M16 x 1.5 threads for both inlet and outlet connections. It also incorporates a bypass valve with an opening pressure of 0.5 bar and a pressure relief valve opening pressure of 1.5 bar, matching the specifications required for various agricultural, construction, and industrial applications. This non-OEM alternative offers a cost-effective solution without compromising on the essential function of fuel system protection.