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Mercedes-Benz E550 Thermostat

7 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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Thermostat Housing Assembly with Thermostat for CL550 E550 GLS550 ML350 S560 SL550Thermostat Housing Assembly with Thermostat for CL550 E550 GLS550 ML350 S560 SL550
A-Premium®Part # APTHA0217
Thermostat Housing Assembly with Thermostat for CL550 E550 GLS550 ML350 S560 SL550
4.694 Reviews
$122.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2019 - 2019 Mercedes-Benz S560, 2017 - 2019 Mercedes-Benz GLS550, 2017 - 2017 Mercedes-Benz Maybach S550, 2016 - 2018 Mercedes-Benz GLE550, 2013 - 2020 Mercedes-Benz SL550, 2013 - 2016 Mercedes-Benz GL550, 2013 - 2014 Mercedes-Benz GL450, 2012 - 2018 Mercedes-Benz CLS550, 2012 - 2017 Mercedes-Benz S550, 2012 - 2012 Mercedes-Benz CLS63 AMG, 2012 - 2012 Mercedes-Benz E550, 2012 - 2012 Mercedes-Benz E63 AMG, 2012 - 2012 Mercedes-Benz ML350, 2012 - 2012 Mercedes-Benz ML550, 2012 - 2012 Mercedes-Benz ML63 AMG, 2011 - 2012 Mercedes-Benz CL550, 2011 - 2012 Mercedes-Benz CL63 AMG, 2011 - 2012 Mercedes-Benz S63 AMG
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercedes-Benz E550
Item LocatedUnited States
Quantity1
ConditionNew
item #1015HQ9R
Note
This item comes with Thermostat, Assembly.
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Engine Coolant Thermostat Housing Assembly for Benz W463 G550 Freightliner Dodge
A-Premium®Part # APTHA0068
Engine Coolant Thermostat Housing Assembly for Benz W463 G550 Freightliner Dodge
4.694 Reviews
$61.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2010 - 2011 Mercedes-Benz E550, 2009 - 2015 Mercedes-Benz G550, 2008 - 2012 Mercedes-Benz GL550, 2008 - 2011 Mercedes-Benz ML550, 2008 - 2011 Mercedes-Benz S450, 2008 - 2008 Mercedes-Benz R550, 2007 - 2012 Mercedes-Benz GL450, 2007 - 2012 Mercedes-Benz SL550, 2007 - 2011 Mercedes-Benz S550, 2007 - 2010 Mercedes-Benz CL550, 2007 - 2008 Dodge Sprinter 2500, 2007 - 2008 Dodge Sprinter 3500, 2007 - 2008 Freightliner Sprinter 2500, 2007 - 2008 Freightliner Sprinter 3500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercedes-Benz E550
Item LocatedUnited States
Quantity1
ColorSilver
ConditionNew
item #1000GX4U
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Vemo V30-99-0187 Engine Coolant Thermostat
VemoPart # V30-99-0187
Vemo V30-99-0187 Engine Coolant Thermostat
57 Reviews
$76.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2012-2012 Mercedes-Benz GL550, 2012-2012 Mercedes-Benz SL550, 2011-2011 Mercedes-Benz SL550, 2010-2011 Mercedes-Benz E550, 2009-2015 Mercedes-Benz G550, 2008-2011 Mercedes-Benz GL550, 2008-2011 Mercedes-Benz ML550, 2007-2012 Mercedes-Benz GL450, 2007-2011 Mercedes-Benz S550, 2007-2010 Mercedes-Benz CL550, 2007-2009 Mercedes-Benz SL550, 2007-2008 Dodge Sprinter 2500, 2007-2008 Dodge Sprinter 3500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercedes-Benz E550
Item LocatedUnited States
Quantity1
Part interchange
V30-99-0187, TM29100D, 669100, 8620340100, 2722000515, 2732000215, A2722000515, A2732000215, 
...View more
item #1001QLU5
Note
With seal
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Beck/Arnley 143-0914 Engine Coolant Thermostat Housing Assembly
Beck/ArnleyPart # 143-0914
Beck/Arnley 143-0914 Engine Coolant Thermostat Housing Assembly
52 Reviews
$140.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2011-2012 Mercedes-Benz SL550, 2010-2011 Mercedes-Benz E550, 2009-2015 Mercedes-Benz G550, 2008-2012 Mercedes-Benz GL550, 2008-2011 Mercedes-Benz ML550, 2007-2012 Mercedes-Benz GL450, 2007-2011 Mercedes-Benz S550, 2007-2010 Mercedes-Benz CL550, 2007-2009 Mercedes-Benz SL550
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercedes-Benz E550
Item LocatedUnited States
QuantityOne Set
Part interchange
143-0914
item #1000XC6Q
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ÜRO Parts 2782000615 Engine Coolant Thermostat Housing Assembly
ÜRO PartsPart # 2782000615
ÜRO Parts 2782000615 Engine Coolant Thermostat Housing Assembly
52 Reviews
$136.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2017-2019 Mercedes-Benz GLS550, 2017-2019 Mercedes-Benz GLS63 AMG, 2017-2017 Mercedes-Benz Maybach S550, 2016-2019 Mercedes-Benz GLE63 AMG, 2016-2019 Mercedes-Benz GLE63 AMG S, 2014-2018 Mercedes-Benz CLS63 AMG S, 2014-2016 Mercedes-Benz E63 AMG S, 2013-2020 Mercedes-Benz SL550, 2013-2019 Mercedes-Benz SL63 AMG, 2013-2018 Mercedes-Benz G63 AMG, 2013-2016 Mercedes-Benz GL550, 2013-2016 Mercedes-Benz GL63 AMG, 2013-2014 Mercedes-Benz GL450, 2012-2018 Mercedes-Benz CLS550, 2012-2017 Mercedes-Benz E550, 2012-2017 Mercedes-Benz S550, 2012-2015 Mercedes-Benz E63 AMG, 2012-2015 Mercedes-Benz ML63 AMG, 2012-2014 Mercedes-Benz CLS63 AMG, 2012-2014 Mercedes-Benz ML550
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercedes-Benz E550
Item LocatedUnited States
Quantity1
Part interchange
2782000615, 2782000615, 2782000815, 9025852, 995217, V30-99-0008, URO-017915
item #1000ZR2X
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ÜRO Parts 2722000515 Engine Coolant Thermostat / Water Inlet Assembly
ÜRO PartsPart # 2722000515
ÜRO Parts 2722000515 Engine Coolant Thermostat / Water Inlet Assembly
52 Reviews
$76.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2014-2015 Mercedes-Benz G500, 2013-2013 Mercedes-Benz G500, 2012-2012 Mercedes-Benz CL500, 2012-2012 Mercedes-Benz E500, 2011-2012 Mercedes-Benz E250, 2010-2011 Mercedes-Benz CL500, 2010-2011 Mercedes-Benz CLS350, 2010-2011 Mercedes-Benz E500, 2010-2011 Mercedes-Benz E550, 2010-2011 Mercedes-Benz S500, 2010-2010 Mercedes-Benz E300, 2009-2014 Mercedes-Benz G550, 2009-2012 Mercedes-Benz G500, 2008-2012 Mercedes-Benz GL500, 2008-2012 Mercedes-Benz GL550, 2008-2011 Mercedes-Benz ML500, 2008-2011 Mercedes-Benz ML550, 2008-2011 Mercedes-Benz S450, 2008-2008 Mercedes-Benz R550, 2007-2012 Mercedes-Benz GL450
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercedes-Benz E550
Item LocatedUnited States
Quantity1
Part interchange
2722000515, 68013949AA, 2732000215, 2722000515, 902-5903, 86039, TM29100D, 940-212, 
...View more
item #1000ZSG2
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Engine Coolant Thermostat - Mahle TM 29 100D
MahlePart # TM 29 100D
Engine Coolant Thermostat - Mahle TM 29 100D
51 Reviews
$150.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2013-2013 Mercedes-Benz G63 AMG, 2011-2012 Mercedes-Benz SL550, 2010-2011 Mercedes-Benz E550, 2009-2015 Mercedes-Benz G550, 2008-2012 Mercedes-Benz GL550, 2008-2011 Mercedes-Benz ML550, 2008-2009 Mercedes-Benz S450, 2008-2008 Freightliner Sprinter 3500, 2007-2012 Mercedes-Benz GL450, 2007-2011 Mercedes-Benz S550, 2007-2010 Mercedes-Benz CL550, 2007-2009 Mercedes-Benz SL550, 2007-2008 Dodge Sprinter 2500, 2007-2008 Dodge Sprinter 3500, 2007-2008 Freightliner Sprinter 2500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercedes-Benz E550
Item LocatedUnited States
Quantity1
Part interchange
TM 29 100D, 4833.100D, 34718, 49452, 273 200 02 15, 272 200 05 15, 669-212, TM29100D, 
...View more
item #1000XN9L
Show less

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