Doosan DB58-5 DB58-7 Thermostat 65.06402-5015 | Diesel Engine Cooling Parts

Product Details

Product Overview

This high-quality thermostat, part number 65.06402-5015, is specifically designed for the Doosan DB58-5 and DB58-7 diesel engines. As a critical component of the engine cooling system, this thermostat regulates the coolant flow to maintain optimal operating temperature, ensuring efficient combustion, reduced emissions, and prolonged engine life.

Manufactured by, this replacement part meets OEM size and performance specifications. It is an ideal solution for heavy-duty machinery requiring reliable thermal management, commonly used in construction equipment, industrial generators, agricultural tractors, marine engines, and material handling vehicles powered by Doosan DB58 series engines.

Please verify your engine model and existing part number before purchase to ensure correct fitment. This part is designed as a direct replacement for the original equipment thermostat in compatible DB58 engine applications.

Key Features & Benefits

• Precise Temperature Control: Engineered to open and close at the correct temperature range, preventing engine overheating or running too cold, which maximizes fuel efficiency and reduces wear.
• OEM Standard Dimensions: Manufactured to match the exact size and specifications of the original Doosan part, ensuring a hassle-free installation without modifications.
• Durable Construction: Built with corrosion-resistant materials and a robust wax-pellet element designed to withstand the harsh operating conditions of diesel engines in construction and industrial environments.
• Enhanced Engine Protection: Maintains consistent operating temperature to reduce thermal stress on cylinder heads, gaskets, and other cooling system components.
• Cost-Effective Replacement: Offers a reliable aftermarket alternative to genuine Doosan parts, providing excellent value without compromising on performance or durability.
• Rigorous Quality Control: Each unit undergoes outgoing inspection and machinery test reporting to verify operational integrity before shipment.

Technical Specifications

OEM Cross-Reference

This thermostat is a direct replacement for the following original equipment part numbers:

• 65.06402-5015 (Primary Part Number)
• Equivalent to Doosan genuine thermostat for DB58-5 and DB58-7 engines.

Note: This part may also be known under alternative supplier references. Please cross-check your existing part number against the primary number listed above.

Compatibility

This thermostat is commonly used for the following engine models and applications:

• Engine Models: Doosan DB58-5, Doosan DB58-7
• Typical Applications:
  • Construction Equipment (excavators, loaders, dozers)
  • Industrial Machinery
  • Agricultural Tractors & Harvesters
  • Generator Sets (Genset)
  • Marine Propulsion & Auxiliary Engines
  • Material Handling Equipment (forklifts, cranes)

Fitment is inferred based on engine model compatibility. Always verify with your equipment manufacturer’s specifications.

Global Supply & Distribution

offers worldwide shipping capabilities to support international B2B buyers. Our logistics network ensures fast and reliable delivery to major ports and industrial centers across the globe.

Major Markets Served:

• North America: United States, Canada, Mexico
• Europe: Germany, United Kingdom, France, Netherlands, Poland, Italy
• Asia-Pacific: Japan, South Korea, Australia, Singapore, Indonesia, Thailand
• Middle East & Africa: UAE, Saudi Arabia, South Africa, Egypt
• South America: Brazil, Chile, Argentina, Colombia

We have extensive export experience and comply with international trade regulations to ensure smooth customs clearance. Bulk orders and customized logistics solutions (air, sea, express) are available to meet your project timelines.

Quality Assurance

Every thermostat is manufactured under strict quality control standards in our Guangdong facility. Key quality measures include:

• Testing: Each unit is individually tested for opening temperature, closing temperature, and stroke accuracy. Video outgoing inspection and machinery test reports are provided upon request.
• Certifications: Manufacturing processes adhere to industry standards for aftermarket parts.
• Warranty: Backed by a 6-month warranty against manufacturing defects, giving you confidence in your purchase.
• Packaging: Securely packed in plastic bags, boxes, and cartons to prevent damage during transit.

FAQ

Q: How do I verify that this thermostat (65.06402-5015) fits my Doosan DB58 engine?
A: Check the identification plate on your engine for the exact model designation (DB58-5 or DB58-7). Cross-reference your existing thermostat part number with 65.06402-5015. If your engine is a DB58 variant not listed, please contact our technical support with your engine serial number for compatibility verification.

Q: What is the recommended installation procedure for this thermostat?
A: Always install the thermostat with the wax pellet (bulb) facing the engine block. Clean the housing surface and replace the gasket or O-ring (sold separately) to prevent leaks. Torque the housing bolts to manufacturer specifications. After installation, run the engine to operating temperature and check for proper coolant flow and no leaks.

Q: What is the typical opening temperature for this thermostat, and how can I test it?
A: This thermostat is designed to open at the standard operating temperature for Doosan DB58 engines (typically around 82°C / 180°F). To test, suspend the thermostat in a container of water, heat the water gradually, and use a thermometer to observe the temperature at which the valve begins to open. The valve should be fully open within a few degrees above the opening temperature.