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Sterling Truck Thermostat

1 item

Upgrade your vehicle's thermostat with A-Premium's high-quality options. Choose reliability and durability for a smoother ride.

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Engine Coolant Thermostat for Freightliner Kenworth Sterling Truck Van Hool 82℃Engine Coolant Thermostat for Freightliner Kenworth Sterling Truck Van Hool 82℃
A-Premium®Part # APTHE079
Engine Coolant Thermostat for Freightliner Kenworth Sterling Truck Van Hool 82℃
4.694 Reviews
$29.99
Low stock: Only 1 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2022 - 2024 Freightliner Cascadia, 2021 - 2021 Kenworth W900, 2020 - 2022 Kenworth W990, 2016 - 2017 Freightliner 114SD, 2015 - 2016 Western Star 6900XD, 2014 - 2023 Kenworth T880, 2014 - 2019 Autocar LLC. Xpeditor, 2014 - 2019 Freightliner 122SD, 2014 - 2017 Mack CXU, 2013 - 2023 Kenworth T680, 2013 - 2014 Kenworth T700, 2013 - 2013 Van Hool C2045, 2011 - 2020 Western Star 4900EX, 2011 - 2018 Western Star 4900FA, 2011 - 2016 Freightliner Coronado, 2011 - 2011 Kenworth T700, 2010 - 2018 Western Star 4900SA, 2009 - 2020 Freightliner Cascadia, 2009 - 2010 Kenworth T2000, 2009 - 2009 Freightliner Columbia
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Sterling Truck
Item LocatedUnited States
Quantity1
ConditionNew
item #1013DYNN
Note
Start to Open Temperature: 82℃.
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What is an engine thermostat?

 While all engines can become too hot, if your thermostat isn't working correctly, your engine's well-being is at serious risk. The engine thermostat, often simply referred to as a thermostat, regulates the engine's operating temperature within an optimal range (typically around 195 to 220 degrees Fahrenheit).

How does a car thermostat work?

As a temperature-sensitive valve within the cooling system, a car thermostat responds to changes in coolant temperature. Understanding how it works by the following breakdown steps:

  • Closed position (cold start)

Initially closed to help the engine warm up quickly.

  • Heating up

The engine generates heat during operation.

  • Opening the thermostat

A temperature-sensitive element (usually wax) causes the thermostat to open gradually.

  • Coolant flow

When open, coolant flows from the engine to the radiator.

  • Maintaining optimal temperature

Adjusts coolant flow to maintain the ideal engine temperature.

  • Temperature regulation

Continuously adjusts to prevent overheating and ensure efficient operation.

Signs of a bad thermostat

  1. Overheating: The engine becomes excessively hot due to a stuck-closed thermostat.
  2. Low or fluctuating temperature: A thermostat stuck open results in a cooler engine, affecting fuel efficiency and heating.
  3. Temperature warning light: Illuminates to indicate engine overheating due to a faulty thermostat.
  4. Poor fuel efficiency: Stuck-open thermostat reduces fuel efficiency as the engine operates less efficiently at lower temperatures.
  5. Inadequate cabin heating: Insufficient cabin heating in cold weather with a thermostat that's stuck open.
  6. Coolant leaks: Gasket or sealing issues can lead to coolant leaks.
  7. Rapid temperature fluctuations: The gauge shows rapid swings between hot and cold.
  8. Engine running hot at idle: Higher engine temperature during idle or in traffic due to restricted coolant flow.
  9. Slow or inconsistent warm-up: Longer-than-normal warm-up times, even in moderate weather.
  10. Inconsistent heater operation: This affects the performance of the vehicle's heater, causing inconsistent or inadequate heating in cold weather.

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Jul 29, 2026