Excavator Engine Thermostat S040166107 for J05E/J08E Engine SK300-8 SK330-8 SK350-8

Product Details

Product Overview

This high-quality thermostat, identified by part number S040166107, is a critical component for maintaining optimal engine operating temperatures in heavy-duty excavators. Designed for the J05E and J08E engine series, this part is commonly used in Komatsu SK300-8, SK330-8, and SK350-8 excavator models. As a genuine OEM-grade component, it ensures precise temperature regulation, preventing engine overheating and promoting efficient combustion.

Engine thermostats are vital for reducing engine wear and improving fuel economy. This unit is engineered to meet the exact thermal specifications required by your excavator’s cooling system. While fitment is inferred based on common applications, we recommend verifying compatibility with your specific machine’s engine serial number before purchase.

Key Features & Benefits

• Precise Temperature Control: Regulates coolant flow to maintain the engine at its ideal operating temperature for maximum efficiency.
• Genuine OEM Quality: Manufactured to original equipment specifications, ensuring a perfect fit and reliable performance matching the original part.
• Long-Lasting Durability: Constructed with high-grade, corrosion-resistant materials to withstand extreme temperature cycles and harsh operating environments.
• Easy Identification: Exact part number S040166107 stamped on the unit, eliminating guesswork during replacement.
• Reduced Wear & Tear: Helps the engine reach operating temperature quickly, reducing cold-start wear and extending engine life.
• Improved Fuel Economy: Proper thermal management ensures the engine runs efficiently, lowering fuel consumption and emissions.

Technical Specifications

OEM Cross-Reference

The following OEM part numbers are direct cross-references for this thermostat:

• S040166107 (Primary OEM Number)

Note: This part is a direct OEM replacement. Always verify the original part number on your existing component before ordering.

Compatibility

This thermostat is commonly used for the following equipment:

• Engine Models: J05E, J08E
• Excavator Models: Komatsu SK300-8, SK330-8, SK350-8
• Application: Excavator truck / Hydraulic Excavator

Important: Compatibility is inferred based on standard OEM specifications. Please cross-reference your machine’s serial number and existing part to confirm fitment before installation.

Global Supply & Distribution

We provide worldwide shipping to major industrial markets, including North America, Europe, Asia-Pacific, the Middle East, and South America. Our logistics network ensures fast delivery to major ports and industrial centers, with reliable tracking available for all international orders.

With extensive export experience, we comply with international trade regulations and customs documentation requirements. Whether you need a single unit for a repair or bulk orders for fleet maintenance, we offer flexible shipping solutions to meet your timeline.

Quality Assurance

Each thermostat undergoes rigorous quality control checks to ensure it meets OEM performance standards. Our manufacturing process includes:

• Material Verification: All raw materials are tested for thermal resistance and durability.
• Functional Testing: Each unit is calibrated to open and close at the precise temperature specified by the engine manufacturer.
• Dimensional Inspection: Critical dimensions are verified to guarantee a perfect seal and fit.

We back this product with a 6-month warranty against manufacturing defects. After-warranty service includes video technical support to assist with installation troubleshooting.

FAQ

Q: How do I confirm this thermostat fits my excavator?
A: First, locate the part number on your existing thermostat or check your engine parts manual. The primary number is S040166107. Verify that your engine is a J05E or J08E series. For the excavator model, ensure it is a SK300-8, SK330-8, or SK350-8. If in doubt, contact our support team with your machine’s serial number for verification.

Q: What are the signs that my thermostat needs replacing?
A: Common symptoms include engine overheating, slow warm-up, fluctuating temperature gauge readings, or coolant leaks near the thermostat housing. If you notice any of these issues, especially on a J08E or J05E engine, replacing the thermostat with part S040166107 is a recommended first step.

Q: Can I install this thermostat myself, or do I need a professional?
A: While replacing a thermostat is a moderate-level mechanical task, we recommend having it installed by a qualified diesel mechanic. The process involves draining coolant, removing the housing, and ensuring the new gasket seals properly. Improper installation can lead to air pockets or leaks. We offer video technical support to guide you through the process if needed.