Mishimoto Dodge 5.9L/6.7L Cummins High-Temperature Thermostat

A defective thermostat can result in engine overheating and potential internal damage. Improve the reliability of your 5.9L/6.7L cooling system with a Mishimoto Dodge 5.9L/6.7L Cummins High-Temperature Thermostat! This thermostat is designed as a direct-fit replacement for your aged factory unit. The Mishimoto thermostat has a higher activation temperature (205 degrees Fahrenheit) compared to the factory thermostat (190 degrees Fahrenheit for 99-10 and 2013 trucks & 200 degrees Fahrenheit for 10-12 trucks). The higher activation temperature restricts coolant flow longer to allow a quicker engine warm-up, making this thermostat ideal for use in cold climates. As with all our products, this thermostat includes the Mishimoto Lifetime Warranty, ensuring superior product quality and craftsmanship. Mishimoto Dodge 5.9L/6.7L Cummins High-Temperature Thermostat MMTS-RAM-99H 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter 42RE, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter 42RE, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter 42RE, 2003 Dodge Ram 1500 Laramie 5.9 Liter 45RFE, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 2003 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 2003 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 2003 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 2003 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter 45RFE, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter 45RFE, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter 46RE, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter 46RE, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter NV3500, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter NV3500, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter NV4500, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter NV4500, 1999-2001 Dodge Ram 1500 Sport 5.9 Liter 42RE, 1999-2001 Dodge Ram 1500 Sport 5.9 Liter 42RE, 1999-2001 Dodge Ram 1500 Sport 5.9 Liter 42RE, 1999-2001 Dodge Ram 1500 Sport 5.9 Liter 46RE, 1999-2001 Dodge Ram 1500 Sport 5.9 Liter 46RE ...See Application Guide for Additional Fitments Fitment: 1999 Dodge Ram 1500 Laramie 1999 Dodge Ram 1500 Sport 1999 Dodge Ram 1500 ST 1999 Dodge Ram 2500 Base 1999 Dodge Ram 3500 Base 2000 Dodge Ram 1500 Laramie 2000 Dodge Ram 1500 Sport 2000 Dodge Ram 1500 ST 2000 Dodge Ram 2500 Base 2000 Dodge Ram 3500 Base 2001 Dodge Ram 1500 Laramie 2001 Dodge Ram 1500 Sport 2001 Dodge Ram 1500 ST 2001 Dodge Ram 2500 Base 2001 Dodge Ram 3500 Base 2002 Dodge Ram 1500 SLT 2002 Dodge Ram 1500 ST 2002 Dodge Ram 2500 Base 2002 Dodge Ram 3500 Base 2003 Dodge Ram 1500 Laramie 2003 Dodge Ram 1500 SLT 2003 Dodge Ram 1500 ST 2003 Dodge Ram 3500 Laramie 2003 Dodge Ram 3500 SLT 2003 Dodge Ram 3500 ST 2004 Dodge Ram 3500 Laramie 2004 Dodge Ram 3500 SLT 2004 Dodge Ram 3500 ST 2005 Dodge Ram 3500 Laramie 2005 Dodge Ram 3500 SLT 2005 Dodge Ram 3500 ST 2006 Dodge Ram 3500 Laramie 2006 Dodge Ram 3500 SLT 2006 Dodge Ram 3500 Sport 2006 Dodge Ram 3500 ST 2007 Dodge Ram 2500 Laramie 2007 Dodge Ram 2500 SLT 2007 Dodge Ram 2500 ST 2007 Dodge Ram 3500 Laramie 2007 Dodge Ram 3500 SLT 2007 Dodge Ram 3500 Sport 2007 Dodge Ram 3500 ST 2007 Dodge Ram 3500 TRX4 2008 Dodge Ram 2500 Laramie 2008 Dodge Ram 2500 SLT 2008 Dodge Ram 2500 ST 2008 Dodge Ram 2500 SXT 2008 Dodge Ram 3500 Laramie 2008 Dodge Ram 3500 SLT 2008 Dodge Ram 3500 ST 2008 Dodge Ram 3500 SXT 2009 Dodge Ram 2500 Laramie 2009 Dodge Ram 2500 SLT 2009 Dodge Ram 2500 ST 2009 Dodge Ram 2500 SXT 2009 Dodge Ram 3500 Laramie 2009 Dodge Ram 3500 SLT 2009 Dodge Ram 3500 ST 2009 Dodge Ram 3500 SXT 2010 Dodge Ram 2500 Laramie 2010 Dodge Ram 2500 SLT 2010 Dodge Ram 2500 ST 2010 Dodge Ram 2500 SXT 2010 Dodge Ram 3500 Laramie 2010 Dodge Ram 3500 SLT 2010 Dodge Ram 3500 ST 2011 Ram 2500 Laramie 2011 Ram 2500 Laramie Longhorn 2011 Ram 2500 SLT 2011 Ram 2500 ST 2012 Ram 2500 Laramie 2012 Ram 2500 Laramie Longhorn 2012 Ram 2500 Outdoorsman 2012 Ram 2500 SLT 2012 Ram 2500 ST 2013 Ram 2500 Big Horn 2013 Ram 2500 Laramie 2013 Ram 2500 Laramie Longhorn 2013 Ram 2500 Lone Star 2013 Ram 2500 Outdoorsman 2013 Ram 2500 SLT 2013 Ram 2500 ST 2013 Ram 2500 Tradesman