Doosan Loader V8 Water Pump 400921-00021 | Engine Cooling Parts for DL200/DL250

Product Details

Product Overview

This premium Doosan Loader V8 Water Pump (Part No. 400921-00021) is a critical engine cooling component designed for reliable thermal management in heavy-duty construction equipment. As a direct replacement for the original equipment, this water pump ensures optimal coolant circulation to prevent engine overheating in demanding applications. We supply this part globally to major markets including North America, Europe, Asia-Pacific, and the Middle East, supporting fleet maintenance and repair operations worldwide.

Key Features & Benefits

• OEM-Grade Quality: Manufactured to meet or exceed Doosan’s original specifications for perfect fit and function.
• Durable Construction: Features a cast iron housing and precision-engineered impeller for long service life under high load conditions.
• Enhanced Cooling Efficiency: Designed to maintain optimal engine operating temperatures, reducing wear and extending engine life.
• Corrosion Resistance: Treated with anti-corrosion coating to withstand harsh operating environments and coolants.
• Direct Fitment: Bolt-on replacement for the 400921-00021 application, requiring no modifications for installation.

Technical Specifications

OEM Cross-Reference

This water pump directly replaces the following OEM part numbers:

• Doosan / Daewoo: 400921-00021
• Alternative Part No: 400921-00020 (superseded)
• Engine Series: V8 (Used in Doosan DL200, DL250 Loader models)

Compatibility

This water pump is specifically designed for the following equipment:

• Doosan Loader Models: DL200, DL250 (all series)
• Engine Type: Doosan V8 Diesel (naturally aspirated and turbocharged variants)
• Years: 2010-2020 (confirm fitment with your engine serial number)

Global Supply & Distribution

We maintain a robust global supply chain to ensure fast delivery to your location:

• Shipping: Worldwide via DHL, FedEx, UPS, or sea freight for bulk orders.
• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Netherlands), Asia-Pacific (China, Australia, Japan, Korea), Middle East (UAE, Saudi Arabia, Qatar), Africa, and South America.
• Delivery: Standard 3-7 business days to major industrial centers; express options available.
• Export Compliance: We ensure all shipments comply with international trade regulations and customs requirements.

Quality Assurance

Our water pumps undergo rigorous quality control to ensure reliability:

• Manufacturing Standards: ISO 9001:2015 certified production facility.
• Testing: 100% pressure and flow tested before shipment.
• Warranty: 12-month warranty against manufacturing defects under normal use conditions.
• Certifications: OEM-compliant materials and manufacturing processes.

FAQ

Q1: Is this water pump a direct replacement for the original Doosan part?
Yes, this 400921-00021 water pump is manufactured as a direct OEM replacement. It bolts on without modifications and includes the necessary gasket for installation. Always verify your engine serial number to ensure compatibility.

Q2: What are the signs that my water pump needs replacement?
Common symptoms include coolant leaks from the pump weep hole, engine overheating, unusual noises (grinding or whining) from the pump area, or visible corrosion on the pump housing. Regular inspection during coolant changes is recommended.

Q3: How should I maintain this water pump for maximum lifespan?
Use the correct coolant mixture (typically 50/50 antifreeze and distilled water) and replace it per the manufacturer’s schedule. Ensure the drive belt tension is correct to avoid premature bearing wear. Inspect the pump annually for leaks or play in the shaft.