Four Seasons 37839 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Mercedes-Benz

Four Seasons 37839 is an engine coolant temperature sensor built for direct replacement in a wide range of Mercedes-Benz, Maybach, Chrysler Crossfire, and Dodge Sprinter applications. It uses a female oval connector with 2 terminals and a no-threads/clip-in mounting style for OE-style serviceability.

The Four Seasons Coolant Temp Sensor line focuses on accurate coolant temperature signal input for engine management and gauge operation. This part meets or exceeds OEM requirements and is a direct-fit option for many Mercedes-Benz cooling system repairs.

Key Features

• Part number: 37839
• Engine coolant temperature sensor for cooling system and engine control applications
• Female oval connector with 2 terminals
• No threads / clip-in fitting style
• Meets or exceeds OEM specifications
• Direct replacement for select Mercedes-Benz, Maybach, Chrysler, and Dodge models

Fitment and Application Details

• Fits 2013-2018 Mercedes-Benz SL65 AMG, N/A
• Fits 2005-2009 Mercedes-Benz SL65 AMG, N/A
• Fits 2010-2013 Mercedes-Benz S400, N/A
• Fits 2010-2011 Mercedes-Benz C300, Right
• Fits 2010-2011 Mercedes-Benz C350, Right
• Fits 2001-2011 Mercedes-Benz CL600, N/A
• Fits 2008-2011 Mercedes-Benz CL65 AMG, N/A
• Fits 2005-2006 Mercedes-Benz CL65 AMG, N/A
• Fits 2010-2011 Mercedes-Benz CLS550, Left
• Fits 2011 Mercedes-Benz G55 AMG, Front Left
• Fits 2010-2011 Mercedes-Benz GL450, Left
• Fits 2010-2011 Mercedes-Benz GL550, Left
• Fits 2010-2011 Mercedes-Benz ML550, Left
• Fits 2010-2011 Mercedes-Benz R350, Upper
• Fits 2011 Mercedes-Benz S550, Left
• Fits 2001-2011 Mercedes-Benz S600, N/A
• Fits 2006-2011 Mercedes-Benz S65 AMG, N/A
• Fits 2011 Mercedes-Benz SL550, Left
• Fits 2011 Mercedes-Benz SL65 AMG, Left
• Fits 2010-2011 Mercedes-Benz SLK300, Left
• Fits 2010-2011 Mercedes-Benz SLK350, Left
• Fits 2011 Mercedes-Benz SLS AMG, Front Left
• Fits 2009-2010 Maybach 57, N/A
• Fits 2003-2007 Maybach 57, N/A
• Fits 2009-2010 Maybach 62, N/A
• Fits 2003-2007 Maybach 62, N/A
• Fits 2010 Mercedes-Benz B200, N/A
• Fits 2010 Mercedes-Benz C250, Right
• Fits 2003-2010 Mercedes-Benz G55 AMG, N/A
• Fits 2005-2010 Mercedes-Benz SLK55 AMG, N/A
• Fits 2004-2009 Mercedes-Benz SL600, N/A
• Fits 2005-2009 Mercedes-Benz SLR McLaren, N/A
• Fits 2004-2008 Chrysler Crossfire, N/A
• Fits 2002-2008 Mercedes-Benz G500, N/A
• Fits 2003-2008 Mercedes-Benz SL55 AMG, N/A
• Fits 2002-2007 Mercedes-Benz ML500, N/A
• Fits 2006-2007 Mercedes-Benz R500, N/A
• Fits 2003-2006 Dodge Sprinter 2500, N/A
• Fits 2003-2006 Dodge Sprinter 3500, N/A
• Fits 2005-2006 Mercedes-Benz C55 AMG, N/A
• Fits 2000-2006 Mercedes-Benz CL500, N/A
• Fits 2001-2006 Mercedes-Benz CL55 AMG, N/A
• Fits 2003-2006 Mercedes-Benz CLK500, N/A
• Fits 2001-2006 Mercedes-Benz CLK55 AMG, N/A
• Fits 2006 Mercedes-Benz CLS500, N/A
• Fits 2006 Mercedes-Benz CLS55 AMG, N/A
• Fits 1998-2006 Mercedes-Benz E320, N/A
• Fits 2003-2006 Mercedes-Benz E500, N/A
• Fits 1999-2006 Mercedes-Benz E55 AMG, N/A
• Fits 2006 Mercedes-Benz S350, N/A
• Fits 2000-2006 Mercedes-Benz S430, N/A
• Fits 2000-2006 Mercedes-Benz S500, N/A
• Fits 2001-2006 Mercedes-Benz S55 AMG, N/A
• Fits 1998-2006 Mercedes-Benz SL500, N/A
• Fits 2003-2005 Mercedes-Benz C230, N/A
• Fits 2003-2005 Mercedes-Benz C240, N/A
• Fits 2001 Mercedes-Benz C240, N/A
• Fits 2001-2005 Mercedes-Benz C320, N/A
• Fits 1998-2005 Mercedes-Benz CLK320, N/A
• Fits 2003-2005 Mercedes-Benz ML350, N/A
• Fits 2002-2004 Mercedes-Benz C32 AMG, N/A
• Fits 2002-2004 Mercedes-Benz SLK32 AMG, N/A
• Fits 2001-2004 Mercedes-Benz SLK320, N/A
• Fits 1999-2003 Mercedes-Benz CLK430, N/A
• Fits 1998-2003 Mercedes-Benz ML320, N/A
• Fits 2000-2003 Mercedes-Benz ML55 AMG, N/A
• Fits 1998-2002 Mercedes-Benz E430, N/A
• Fits 1999-2001 Mercedes-Benz ML430, N/A
• Fits 1998-2000 Mercedes-Benz C280, N/A
• Fits 1998-2000 Mercedes-Benz C43 AMG, N/A

What This Sensor Helps Address

• Incorrect coolant temperature readings on the dash or scan tool
• Hard starting or poor cold-start fuel control caused by faulty temperature input
• Engine management faults tied to coolant temperature signal errors
• Cooling fan operation issues related to inaccurate sensor data
• Check engine light conditions associated with coolant temperature sensor failure

Installation Notes and Tips

Verify connector shape, terminal count, and mounting style before installation. This Four Seasons 37839 sensor uses a female oval connector and a clip-in design, so it should be matched to the original sensor configuration on the vehicle. Confirm the exact application by year, make, model, and position, especially on Mercedes-Benz C300, C350, C250, CLS550, GL450, ML550, and related models.

Cross-reference part numbers include URO 0005425118 and Global Parts Distributors LLC 1712640 for the same application.

Quality Assurance

Four Seasons lists this coolant temp sensor as meeting or exceeding OEM requirements, supporting OE-style fit and function for the specified applications. Part number 37839 is built for direct replacement use in cooling system temperature sensing applications.