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Mercedes Engine Coolant Thermostat (87C) 1122030275 - Wahler 428187D

Mercedes-Benz OE: 1122030275

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Quality: OEM [ info ]
Warranty: eEuroparts for Life [ info ]
SKU: 1122030275OE
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Engine Coolant Thermostat (87C) by Wahler

About Engine Coolant Thermostats

Your engine coolant thermostat sits between the engine and the radiator, in a thermostat housing. The thermostat blocks the flow of coolant to the radiator until the engine has warmed up. Once the engine is warm enough, usually around 200-220 degrees F, the thermostat opens and allows the coolant to flow. The engine coolant thermostat is the most common component of the cooling system to fail, which can cause your car to overheat in the unlikely event it were to be stuck closed. More commonly, the thermostat can be stuck open, making it difficult for your engine to warm up. This can result in your car running cool, causing an overly rich fuel mixture and an inefficient running engine. It should be replaced anytime you have major work done to the coolant system.

eEuroparts.com® carries an extensive catalog of aftermarket, OEM, original, and genuine parts from over 200 manufacturers. We are also constantly updating our Wahler parts selection to give you the best possible selection of parts.


Country of Manufacture: Germany
Manufacture Quality: OEM
Shipping Weight (lbs): 0.650

Mercedes-Benz OE No.
Current No.: 1122030275 Prior No.: 1122000015, 112200001528

About Wahler

WahlerWahler Logo

When it comes to automotive systems engineering, Wahler has been there nearly since the beginning, pioneering technologies that modern systems would never be able to survive without. The first patent that this German company owns is a pretty important one, and is written as the "Thermostatic Regulation of the Coolant Circuit of Internal Combustions Engines'. You would know this as the common Thermostat, and it started a long tradition of developing and building technology to regulate the temperature of your engine, an absolutely crucial aspect that impacts both reliability and efficiency.

Since the 30's, Wahler has branched out to other regulatory components, but never strayed far from its roots. Today, Wahler manufacturers OEM, OES, and aftermarket components in Germany to the highest quality standards possible. A favorite brand in the automotive service industry, when you put Wahler parts in your car, you can rest easy knowing you are installing the best quality parts available.

If this is not the exact Engine Coolant Thermostat (87C) you are looking for, or you would like this part in a brand other than Wahler, please contact us and one of our customer service experts will help you locate the exact part you need.

Vehicle Fitment & Notes


+ Mercedes-Benz C240 2001-2005

+ Mercedes-Benz C280 1998-2000

+ Mercedes-Benz C320 2001-2005

+ Mercedes-Benz C43 AMG 1998-2000

+ Mercedes-Benz C55 AMG 2005-2006

+ Mercedes-Benz CL500 2000-2006

+ Mercedes-Benz CL55 AMG 2001-2002

+ Mercedes-Benz CLK320 1998-2005

+ Mercedes-Benz CLK430 1999-2003

+ Mercedes-Benz CLK500 2003-2006

+ Mercedes-Benz CLK55 AMG 2001-2006

+ Mercedes-Benz CLS500 2006-2006

+ Mercedes-Benz E320 1998-2005

+ Mercedes-Benz E430 1998-2002

+ Mercedes-Benz E500 2003-2006

+ Mercedes-Benz E55 AMG 1999-2002

+ Mercedes-Benz G500 2002-2008

+ Mercedes-Benz ML320 1998-2003

+ Mercedes-Benz ML350 2003-2005

+ Mercedes-Benz ML430 1999-2001

+ Mercedes-Benz ML500 2002-2007

+ Mercedes-Benz ML55 AMG 2000-2003

+ Mercedes-Benz R500 2006-2007

+ Mercedes-Benz S350 2006-2006

+ Mercedes-Benz S430 2000-2006

+ Mercedes-Benz S500 2000-2006

+ Mercedes-Benz S55 AMG 2001-2002

+ Mercedes-Benz SL500 1999-2006

+ Mercedes-Benz SLK320 2001-2004





  • This warranty does not cover any shipping costs.

Last Updated: 11/14/2018

Delivery & Returns

Delivery Info

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Returns Info


