Doosan Daewoo water pump (model 400921-00016) is a core component of the excavator engine cooling system, responsible for driving the circulation of coolant and maintaining a stable engine operating temperature. This product features a high-strength cast iron casing and a precision-cast impeller, combined with ceramic mechanical seal technology, offering efficient flow output, corrosion resistance and leak-proof properties. The internal bearings have undergone special strengthening treatment, supporting high-speed operating conditions, reducing vibration and noise, and extending service life. The product strictly adheres to the original factory specifications and is compatible with multiple models of Doosan Daewoo excavators. The installation interfaces are precisely matched and can be directly replaced without modification.
Core features and advantages:
High-efficiency heat dissipation performance: The impeller design optimizes the coolant flow, quickly balancing the engine temperature and avoiding overheating damage.
Durability and sealing performance: The cast iron housing is pressure-resistant and corrosion-resistant. The double-lip sealing structure prevents coolant leakage and is compatible with long-lasting antifreeze.
Wide compatibility: Specifically designed for Doosan Daewoo excavators (such as DH220-5, DH300LC-7, DH450, etc.), it is compatible with original factory pipelines and connectors.
Dual versions available: We offer original quality products and also supply alternative versions from third-party manufacturers. These versions are reliable in performance and cost reduced by over 30%, meeting the diverse needs of maintenance budgets.
Application scenarios
It is mainly used for the maintenance and repair of the engine cooling system of Doosan Daewoo excavators, and is suitable for equipment maintenance in fields such as mining, construction, and civil engineering. It can solve common problems such as abnormal noise, leakage, or weak circulation of water pumps, ensuring the continuous and efficient operation of the engine.
Procurement suggestion
Genuine products can be purchased through Ningbo Qiuning Trading Co., LTD.
The third-party alternative version is suitable for non-extreme working conditions and offers high cost performance. However, it is recommended to regularly check the operating status.
When installing, the pipeline should be cleaned and standard antifreeze should be used to avoid idling and damaging the seal.
Notes
When choosing third-party products, it is necessary to confirm the dynamic balance of the impeller and the sealing material.
It is recommended to check the performance of the water pump every 2,000 hours or annually and replace the aged parts in a timely manner.
This product takes reliability as its core and provides long-term cooling protection for equipment!
We are a supplier of various engine assemblies and engine parts in China, with a wide range of brands and types. We have a huge warehouse for storage and a professional after-sales maintenance team. Both original and auxiliary factories are available, with global supply.
Ningbo Qiuning Trading Co., LTD. Service Supply and Sales Center
Our company offers a wide range of engine assemblies and accessories of different brands and models
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E-mail: allen@perkins-rx.com
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