Send OEM number, quantity, destination, or photos. We will reply with quotation, lead time, and fitment notes.
Fitment checkOEM number, engine model, and machine model confirmation.
Manual quotePrice, MOQ, stock, lead time, and replacement options.
Export supportPacking notes, mixed order support, and shipping details.
Product Details
Product Overview
This high-quality water pump is a direct replacement for Doosan Daewoo DE12T and DE12Ti diesel engines, specifically designed for the heavy-duty DH370 and DH420 excavator series. As a critical component of the engine cooling system, this water pump ensures optimal coolant circulation to prevent overheating under extreme working conditions. We supply this part globally, serving major markets including North America, Europe, the Middle East, Southeast Asia, and Australia, ensuring fast and reliable shipping to your local port or industrial hub.
Key Features & Benefits
OEM Standard Fitment: Manufactured to meet or exceed original Doosan Daewoo specifications, guaranteeing a direct bolt-on replacement without modifications.
Superior Durability: Constructed with a heavy-duty cast iron housing and a precision-engineered stainless steel impeller to resist corrosion and cavitation.
Enhanced Cooling Efficiency: Optimized impeller design ensures maximum coolant flow rate, maintaining stable engine temperatures even during prolonged, high-load excavation operations.
Long Service Life: Equipped with a high-quality sealed bearing and a durable mechanical seal, reducing the risk of leaks and extending the replacement interval compared to standard aftermarket parts.
Rigorous Testing: Every unit undergoes pressure testing and rotational balance checks to ensure zero defects and reliable performance upon installation.
Technical Specifications
Specification
Detail
Part Number
65.06500-6140 / 65.06500-6140F / 65.06500-6140G
Engine Model
DE12T, DE12Ti
Application
Doosan Daewoo DH370, DH420 Excavator
Material
Cast Iron Housing / Steel Impeller
Seal Type
High-Temperature Mechanical Seal
Bearing Type
Sealed Ball Bearing (Maintenance-Free)
Rotation
Clockwise (Standard Engine Rotation)
OEM Cross-Reference
This water pump is a direct cross-reference for the following original equipment manufacturer numbers. Please verify your existing part number for compatibility.
Doosan Daewoo: 65.06500-6140
Doosan Daewoo: 65.06500-6140F (Updated Version)
Doosan Daewoo: 65.06500-6140G (Latest Revision)
Note: The suffixes F and G often denote minor design revisions (e.g., seal or gasket changes) but are fully interchangeable with the base 6140 part.
Compatibility
This water pump is specifically designed for the following engine and machine models. It is not suitable for the DE12 series used in truck applications.
Engine: Doosan Daewoo DE12T, DE12Ti
Excavator Models:
Doosan Daewoo DH370
Doosan Daewoo DH420
Global Supply & Distribution
We maintain a robust inventory to support global B2B supply chains. Our logistics network ensures efficient delivery to meet your operational deadlines.
Worldwide Shipping: Air, sea, and express courier options available (FOB, CIF, DDP terms).
Major Markets Served:
Asia-Pacific: China, Korea, Japan, Indonesia, Singapore, Australia.
Middle East & Africa: UAE, Saudi Arabia, Qatar, South Africa, Nigeria.
Europe: Germany, Netherlands, UK, Poland, Russia.
Americas: USA, Canada, Brazil, Chile, Mexico.
Fast Delivery: Standard shipping to major ports (e.g., Rotterdam, Los Angeles, Shanghai, Dubai) within 7-15 working days.
Compliance: All parts are exported in compliance with international trade regulations and can be cleared through customs efficiently.
Quality Assurance
Manufacturing Standard: ISO 9001:2015 certified production facility.
Testing: 100% pressure tested for leaks and 100% run-in tested for rotational noise and vibration.
Warranty: 12-month standard warranty against manufacturing defects. Extended warranty options available for bulk/contract orders.
Certification: Material certifications and test reports available upon request.
FAQ
Q1: How do I confirm this water pump fits my Daewoo DH420 excavator?
First, check the part number on your existing water pump. It should be either 65.06500-6140, 6140F, or 6140G. If you cannot see the number, please check your engine serial number. This part is specifically for the DE12T and DE12Ti engines. It will not fit the older DE12 or the newer DL08 engine.
Q2: What is the difference between the 65.06500-6140, 6140F, and 6140G versions?
The suffixes indicate minor engineering updates from the original Doosan Daewoo manufacturer. Typically, these changes involve the type of mechanical seal or the gasket design to improve sealing longevity. All three versions are fully interchangeable and will bolt onto the engine in the same manner. We recommend using the latest revision (6140G) for the best performance, but any of the three will function correctly.
Q3: What maintenance steps should I take when replacing this water pump?
Always replace the water pump gasket and the engine coolant simultaneously. We recommend using a 50/50 mix of approved ethylene glycol antifreeze and distilled water. After installation, run the engine to operating temperature with the radiator cap off to bleed air from the system. Check for leaks at the pump weep hole after the first hour of operation. A small amount of grease seepage is normal initially, but a steady drip indicates a seal failure.
Inquiry Form
Send Inquiry
Leave your email and phone / WhatsApp so sales can follow up directly.