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PAI · Cooling System
381849
In stock · ships from Knoxville
This is a 170-degree Fahrenheit non-vented coolant thermostat designed as a direct replacement for Caterpillar heavy-duty diesel engines.
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Verified fitment for 2 applications
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All confirmed applications for this part number.
Caterpillar
Caterpillar
170°F non-vented version. Verify if your engine requires vented or different temperature thermostat.
Part data verified against 5 catalog sources
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It regulates engine temperature by opening at 170°F to allow coolant flow, preventing overheating and maintaining optimal combustion efficiency. Thermostats like this are typically replaced when they fail stuck open or closed, causing the engine to run too cold or overheat, or as part of routine cooling system service.
Part Number: 381849
170 THERMOSTAT. CAT4W4011
Unit: ea
Vendor: PAI Industries
Dealer: KP Services Crossville
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