INTERNATIONAL part description

Features & Benefits

  • Designed for Maxxforce 13 engines and matches factory specifications for a perfect fit
  • Prevents overheating and cold starts and maintains ideal operating temperatures
  • Improves fuel efficiency and keeps combustion consistent and controlled
  • Reduces engine wear and protects key components from temperature-related damage

International Engine Coolant Thermostat

Overheating and cold starts wreak havoc on an engine, and a dependable thermostat prevents both. The International Engine Coolant Thermostat, built for Maxxforce 13 engine models, regulates coolant flow to maintain the ideal operating temperature. Engines that run too hot suffer increased wear, while those that run too cold struggle with poor fuel combustion. The International 3006444C3 keeps temperature fluctuations under control, ensuring optimal performance and long-term engine health. Fuel efficiency, reduced maintenance, and overall reliability all start with proper temperature regulation.

International® is a leading manufacturer of medium- and heavy-duty trucks, trusted by fleets and drivers across industries for performance, durability, and innovation. As part of Navistar, this brand not only builds trucks designed for the long haul but also engineers a full line of OEM replacement parts to keep them running at their best. International parts are specifically designed for seamless integration with International vehicles, ensuring reliability, safety, and maximum uptime. Backed by decades of real-world experience, the brand delivers the parts and support needed to keep commercial trucks moving—day in and day out.

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