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High-performance Water Pump Assembly for Dongfeng Jinlan Heavy-duty Truck 4B 4BT Engine Spare Parts 3696868

The Cummins 3696868 Water Pump Assembly is an original equipment (OE) high-performance coolant pump designed for next-generation heavy-duty diesel engines in the ISG, X, and QSG series. As a core component of the engine’s cooling system, it circulates coolant under pressure through the cylinder block, radiator, and charge air cooler — effectively removing heat generated during combustion to maintain optimal operating temperature.

Engineered for reliability under extreme conditions such as long-haul transport, mining, construction, and power generation, this water pump ensures stable thermal management even during prolonged high-load operation or steep grade climbing. It is widely used on flagship models including Foton Daimler Auman GTL/EST/Galaxy and select SHACMAN export variants equipped with Cummins ISG/X12 engines.
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  • 3696868

  • Dongfeng

Attribute Description
Product Name Engine Water Pump Assembly / Coolant Circulation Pump
Function Drives forced circulation of engine coolant to prevent overheating
Housing Material High-strength cast iron or reinforced aluminum alloy (depending on variant)
Impeller Design Hydrodynamically optimized steel or composite impeller for maximum flow efficiency
Sealing System Dual-face mechanical seal using ceramic or carbon-based materials resistant to wear and corrosion
Drive Type Belt-driven via multi-ribbed serpentine belt (connected to crankshaft pulley)
Leak Detection Feature Equipped with a weep hole (inspection port) at bottom to indicate early seal failure
Weight Approx. 5.62 lbs (2.55 kg)
Durability Designed for over 800,000 km under normal operating conditions
水泵总成-2


水泵总成-1


Parameter Specification
Part Number (OEM) 3696868
Current Service Replacement No. 3698067 (most commonly stocked upgrade/replacement)
Related Part Numbers

3696867

3697155

369686800 (possibly packaging or regional variant)
Flow Rate Optimized for large-displacement engines (~200–300 L/min typical)
Operating Speed Synchronized with engine RPM via belt ratio (up to ~6,000 rpm max)
Max Operating Temperature Up to 120°C continuous; short-term peaks up to 140°C acceptable
Bearing Type Precision ball bearing with extended grease life and anti-friction coating
Mounting Style Bolt-on flange mount with gasket or O-ring seal
Coolant Compatibility Requires OAT-type (Organic Acid Technology) long-life antifreeze meeting Cummins CES 14603 standard


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