Yuchai Machinery Engine Cooling Water Pump Assembly D7103-1307100B for YC4EG 6EG D4 D6 4D 6D Medium And Large Heavy-duty Diesel Engines

This component is the core power source of the engine cooling system, responsible for driving the antifreeze to circulate at high flow rates under high load operation.

High-strength pump body: The outer casing is mostly made of high-rigidity cast iron or thickened precision cast aluminum, capable of withstanding continuous scouring by high-temperature coolant and high-pressure operating conditions, effectively preventing casing cracking or leakage.

Wear-resistant water seal and bearings: Internally equipped with imported or high-performance ceramic/graphite high-temperature resistant mechanical water seals, paired with high-load double-row ball roller bearings, ensuring that the water pump does not leak or lock up under long-distance high-speed or low-speed heavy-load conditions.

Optimized impeller design: The precisely calculated internal impeller curvature and structure significantly increase the cooling water circulation flow rate per minute, reduce pump cavitation, and significantly improve engine heat dissipation efficiency.