The Case IH 5801486599REG is a genuine OEM regenerated injection pump designed for various Case IH and New Holland agricultural machines. This remanufactured component ensures precise fuel delivery to the engine, critical for maintaining optimal performance and efficiency. It is a direct replacement for original part numbers 5801486599, 504380187, and 504380187R, offering a cost-effective solution without compromising on quality or reliability. Ideal for restoring the fuel system integrity of compatible tractors.