This PTO gear pump, designed for trucks and dump trucks, is a key hydraulic component compatible with 489/442 hydraulic transmission PTO systems. Based on gear pump working principles, it converts mechanical power from the transmission into hydraulic energy to drive the vehicle's hydraulic systems. Adopting a stainless steel structure, it boasts excellent corrosion and wear resistance, suitable for heavy-duty working conditions. The horizontal pump shaft ensures stable power transmission, while the manual drive allows operators to flexibly control the pump's operation. With a single-stage impeller, it provides consistent and reliable hydraulic pressure, effectively supporting dump truck lifting, hydraulic tool operation, and other functions. Its direct fit with standard PTO interfaces ensures easy installation, maintaining the stability and efficiency of the truck's hydraulic system during long-term use.