This aftermarket replacement electric fuel pump, part number 4225044M1, is engineered as a direct substitute for original Perkins fuel pumps with part numbers 4225044M1, ULPK0041, and ULPK0039. Designed to ensure a reliable fuel supply, this non-OEM alternative is crucial for maintaining optimal engine performance across a range of Perkins 400 Series engines. It functions as a vital component within the fuel system, efficiently drawing fuel from the tank and delivering it under precise pressure to the engine's injection system. This compatible fuel pump assembly typically integrates an essential fuel filter and a sensor, offering a comprehensive solution for both fuel delivery and system monitoring. The integrated filter plays a critical role in safeguarding the engine by preventing harmful contaminants from reaching sensitive fuel system components, while the sensor provides vital feedback for effective engine management. Ideal for routine maintenance and necessary repairs, this replacement part offers a cost-effective solution without compromising on essential functionality. It is suitable for various applications utilizing Perkins 403C-11, 403C-15, 403D-11, 403D-15, 403D-15T, 404C-22, 404C-22T, 404D-15, 404D-22, and 404D-22T engines. Always verify compatibility with your specific engine model before purchase. This is a high-quality, non-original part designed to meet or exceed the performance standards of the original equipment.