
Product Overview
This is a premium OEM-grade diesel engine water pump, engineered for optimal cooling system performance in heavy-duty machinery. We specialize in the global supply of genuine-quality engine components, serving major industrial markets across North America, Europe, the Middle East, and Asia-Pacific. This direct-fit replacement part is manufactured to exacting standards, ensuring reliable operation and extended service life for your Doosan equipment.
Key Features & Benefits
- Precision Engineered: Manufactured to strict OEM specifications (OEM Size) for a perfect, hassle-free fitment, eliminating installation issues and downtime.
- Superior Durability: Constructed from high-grade materials to withstand the extreme temperatures and pressures within diesel engine cooling systems, ensuring long-term reliability.
- Optimal Thermal Management: Designed to maintain consistent coolant flow, effectively regulating engine temperature to prevent overheating and protect critical engine components.
- Rigorous Quality Control: Each unit undergoes comprehensive testing, including video outgoing-inspection, to guarantee performance and reliability before shipment.
- Global Logistics Ready: Professionally packed for international shipping, ensuring secure delivery to ports and industrial hubs worldwide.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 400921-00532 / 400921-00532D |
| Engine Model | DX12, DX12TI, DX12TIS |
| Type | Water Pump |
| Engine Type | Diesel |
| Warranty | 6 Months |
| Weight | 15 kg |
| Place of Origin | Guangdong, China |
| Packing | Plastic Bag, Box, Carton |
| Selling Units | Single Item |
| Quality Documentation | Machinery Test Report Provided, Video Outgoing-Inspection Provided |
OEM Cross-Reference
This water pump is a direct replacement for the following OEM part numbers:
- Primary OEM Number: 400921-00532
- Alternative/OEM Number: 400921-00532D
Compatibility
This diesel engine water pump is designed for compatibility with the following applications:
Compatible Engine Models: Doosan DX12, DX12TI, DX12TIS diesel engines.
Vehicle/Machine Applications:
- Excavators: Doosan DX340LCA-K, DX360LCA-7M
- Forklifts
- Trucks
- Loaders
- Bulldozers
- Buses
- And other heavy machinery equipped with the compatible DX12-series engine.
Global Supply & Distribution
We are a trusted partner for B2B buyers worldwide, offering seamless export services and reliable supply chain solutions. Our core markets include North America (USA, Canada, Mexico), the European Union, the United Kingdom, Australia, the Middle East (UAE, Saudi Arabia), and Southeast Asia. We ensure fast containerized and LCL shipments to major global ports such as Los Angeles, Rotterdam, Singapore, and Jebel Ali, with extensive experience in international trade documentation and compliance.
Quality Assurance
Every water pump is produced under stringent manufacturing protocols to meet or exceed original equipment performance standards. Our commitment to quality is backed by a 6-month warranty from the date of purchase. The production process includes material certification, precision machining, and a final inspection regime that provides a machinery test report and video evidence of the outgoing inspection for complete transparency and buyer confidence.
FAQ
Q: Is this water pump a direct fit for my Doosan DX340LCA-K excavator?
A: Yes, absolutely. This part (400921-00532) is manufactured to the exact OEM dimensions and bolt pattern specified for the DX12 engine used in the DX340LCA-K model, ensuring a direct, bolt-on replacement without modification.
Q: What documentation is provided to verify the quality of this part?
A> We provide a machinery test report for the product batch and a video outgoing-inspection for your specific unit upon request. This documentation verifies performance parameters and visual quality checks before shipment.
Q: Do you support bulk orders for fleet maintenance or dealership inventory?
A> Yes, we specialize in B2B bulk supply. We offer competitive tiered pricing for large quantity orders and can customize packing for palletization and efficient container loading. Please contact our sales team for a customized quotation and delivery schedule to your region.
Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.
2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.
3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.
4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.
5. Scientific ERP system, easy and fast to locate the parts that customer needs.
6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.
Exhibition

Packing&Shipping

1. Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).
2. Once we get confirmation of payment, we will ship products in 2 days.
3. Our packaging is standard export wooden box or others as your requirement.
4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ
Q1. What is your company major products?
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
Q2.What is the MOQ?
A: Normally we can supply any quantity if we have in stock.
Q3. What is your payment term ?
A: We accept Western Union, T/T, Paypal.
Q4. What is the packing ?
A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
Q5. When can you deliver products after payment ?
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
Q6. What can you do to complete order perfectly ?
A: In the beginning , We will communicate with clients in details to understand what they need .
Before packing , We will check the products and send photos to clients .After confirmation ,
We will packing products well to avoid damage . Once we get tracking number ,
We will send it to customer and keep contact in with clients .