This oil pump is manufactured in strict accordance with factory standard specifications, designed to deliver reliable lubrication support for construction and mining site excavator engine operation. It adopts high-strength alloy casting structure with excellent heat resistance and wear resistance, which can maintain stable oil pressure output under long-term high-load working conditions, effectively reducing the risk of abnormal friction between engine moving parts. The precision-machined internal flow path ensures smooth lubricant delivery, maintaining flow integrity to avoid excessive wear caused by insufficient lubrication during continuous operation. Each component undergoes dimensional accuracy testing and pressure resistance inspection before leaving the factory, matching the installation position of the corresponding engine models perfectly, realizing direct replacement without secondary modification, helping to shorten equipment maintenance time and restore construction operation efficiency quickly.