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Yanmar Komatsu Excavator Thermostat Assembly 129938-49800

Other Engine Parts
January 19, 2026
Keyword: Other Engine Parts
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Tags:
#Electric Fuel Pump #Engine Fan Blade #diesel fuel separator
Video Description:
We tested it—see the highlights and what to expect in real operation. This video provides a detailed walkthrough of the 129938-49800 Thermostat Assembly, showing how it regulates coolant flow and temperature in Yanmar and Komatsu diesel engines. You'll see its installation in the engine cooling system and learn how it ensures stable operation in construction machinery.
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