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Sterling Thermostat

2 items

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

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A-Premium APTHE049 Engine Coolant ThermostatA-Premium APTHE049 Engine Coolant Thermostat
A-Premium®Part # APTHE049
A-Premium APTHE049 Engine Coolant Thermostat
52 Reviews
CA$41.99
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2-year warranty
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Fits 2013 - 2013 Honda Civic, 2011 - 2011 Honda CR-Z, 2011 - 2011 Honda Fit, 2003 - 2006 Honda Civic, 2000 - 2005 Acura EL, 1995 - 1995 Honda Odyssey, 1994 - 1995 Honda Accord, 1993 - 1995 Honda Civic del Sol, 1992 - 1995 Honda Prelude, 1989 - 1991 Sterling 827, 1988 - 1991 Honda Civic, 1988 - 1991 Honda CRX, 1987 - 1988 Sterling 825, 1986 - 1995 Acura Integra, 1986 - 1987 Honda Wagovan, 1984 - 1991 Honda Civic, 1984 - 1987 Honda Civic, 1984 - 1986 Toyota Pickup, 1984 - 1984 Honda Wagovan, 1983 - 1983 Toyota Corolla
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Vehicle: Sterling
Item LocatedUnited States
Quantity1
MaterialMetal and Rubber
ConditionNew
item #1005V0SL
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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℃
52 Reviews
CA$45.99
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2-year warranty
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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
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Vehicle: Sterling
Item LocatedUnited States
Quantity1
ConditionNew
item #1013DYNN
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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.

Related Blogs

Why Does Coolant Boil After You Turn the Engine Off?

Learn why coolant boils or bubbles after you turn the engine off, how heat soak affects the cooling system, and how to diagnose leaks, trapped air, cap, thermostat, fan, water pump, or head gasket problems.

Jul 29, 2026