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Original Factory Yuchai 6J125 Engine Accessories Water Pump Parts 6QAJ-1307010D Used for Yutong Bus or Other Dump Truck

Yuchai 6J125 Engine Accessories Water Pump Parts 6QAJ-1307010D Used for Yutong Bus or Other Dump Truck

The 6QAJ-1307010D Water Pump Assembly is an original equipment (OE) centrifugal coolant pump specifically engineered for Yuchai’s high-output diesel engine platforms, including the YC6108G, YC6G, YC6J, and YC6A series. As a core component of the engine's liquid cooling system, it ensures reliable circulation of coolant between the engine block and radiator—preventing overheating during continuous high-load operation.

Constructed with a high-strength gray cast iron housing and precision-balanced impeller, this belt-driven water pump delivers high flow rates while maintaining structural integrity under extreme thermal and mechanical stress. It features an advanced mechanical seal made from wear-resistant ceramic and carbon materials, designed to withstand prolonged exposure to high temperatures and aggressive coolants.

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Model:
6QAJ-1307010D
Brand:
Yutong Bus Parts

Product Description

Attribute	Description
Part Number (OE)	6QAJ-1307010D / 6QAJ1307010D
Product Name	Centrifugal Water Pump Assembly
Common Names	Engine Coolant Pump, Radiator Circulation Pump
Application Engine	Yuchai YC6108G, YC6G, YC6J, YC6A Series
Vehicle/Equipment Type	Heavy-Duty Diesel Engines, Construction Equipment, Buses
Pump Type	Belt-Driven Centrifugal Pump
Housing Material	High-Strength Gray Cast Iron
Impeller Material	Reinforced alloy steel or stainless steel
Seal Type	Mechanical Seal (Ceramic/Carbon Face)
Drive Method	Driven via front-end accessory belt (V-belt or poly-V belt)
Weight (Net)	5.5 – 6.5 kg
Design Standard	Meets GB/T 19055, ISO 14955, and Yuchai OE specifications

Parameter	Specification
Flow Rate (Typical)	180 – 220 L/min (at rated speed)
Maximum Operating Temperature	Up to 110°C (coolant), transient peaks up to 130°C
Speed Range	1,500 – 4,500 rpm (driven ratio dependent)
Seal Life	≥8,000 hours under normal conditions
Bearing Type	Precision sealed ball bearing with anti-vibration design
Inlet/Outlet Diameter	Typically Φ32mm – Φ38mm (standard hose/barb fittings)
Mounting Pattern	Fixed bolt pattern compatible with Yuchai engine front cover
Leakage Detection	Equipped with weep hole (drain hole) below shaft — first sign of seal failure
Service Life	6–8 years or 600,000 km (depending on operating conditions)