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

Improve the reliability of your 5.9L/6.7L cooling system with a Mishimoto Dodge 5.9L/6.7L Cummins Low-Temperature Thermostat! This thermostat is designed as a direct-fit replacement for your aged factory unit.

The Mishimoto thermostat has a lower activation temperature (180 degrees Fahrenheit) compared to the factory thermostat (190 degrees Fahrenheit for 99-10 and 2013 trucks & 200 degrees Fahrenheit for 10-12 trucks). The lower activation temperature allows coolant to flow through the engine earlier, which reduces and maintains lower engine temperatures.

This thermostat is ideal for use in warmer climates or under extreme towing/driving conditions. As with all our products, this thermostat includes the Mishimoto Lifetime Warranty, ensuring superior product quality and craftsmanship.

  • Activates at lower temperature so coolant flows through system earlier
  • Direct fit for 1999-2013 Dodge Ram with 5.9L/6.7L Cummins
  • Allows for cooler engine temperatures
  • Mishimoto Lifetime Warranty
  • Ideal for warm climates

This product fits more vehicles than loaded. Please select your vehicle to see all fits.

Make Model Year Type
Dodge Ram 1500 1999 Laramie
Dodge Ram 1500 1999 Sport
Dodge Ram 1500 1999 ST
Dodge Ram 1500 2000 Laramie
Dodge Ram 1500 2000 Sport
Dodge Ram 1500 2000 ST
Dodge Ram 1500 2001 Laramie
Dodge Ram 1500 2001 Sport
Dodge Ram 1500 2001 ST
Dodge Ram 1500 2002 SLT
Dodge Ram 1500 2002 ST
Dodge Ram 1500 2003 Laramie
Dodge Ram 1500 2003 SLT
Dodge Ram 1500 2003 ST
Dodge Ram 2500 1999 Base
Dodge Ram 2500 2000 Base
Dodge Ram 2500 2001 Base
Dodge Ram 2500 2002 Base
Dodge Ram 2500 2003 Laramie
Dodge Ram 2500 2003 SLT
Dodge Ram 2500 2003 ST
Dodge Ram 2500 2004 SLT
Dodge Ram 2500 2004 ST
Dodge Ram 2500 2005 Laramie
Dodge Ram 2500 2005 SLT
Dodge Ram 2500 2005 ST
Dodge Ram 2500 2006 Laramie
Dodge Ram 2500 2006 Power Wagon
Dodge Ram 2500 2006 SLT
Dodge Ram 2500 2006 Sport
Dodge Ram 2500 2006 ST
Dodge Ram 2500 2006 TRX4
Dodge Ram 2500 2007 Laramie
Dodge Ram 2500 2007 Power Wagon
Dodge Ram 2500 2007 SLT
Dodge Ram 2500 2007 Sport
Dodge Ram 2500 2007 ST
Dodge Ram 2500 2007 TRX4
Dodge Ram 2500 2008 Laramie
Dodge Ram 2500 2008 Power Wagon
Dodge Ram 2500 2008 SLT
Dodge Ram 2500 2008 ST
Dodge Ram 2500 2008 SXT
Dodge Ram 2500 2009 Laramie
Dodge Ram 2500 2009 Power Wagon
Dodge Ram 2500 2009 SLT
Dodge Ram 2500 2009 ST
Dodge Ram 2500 2009 SXT
Dodge Ram 2500 2010 Laramie
Dodge Ram 2500 2010 Power Wagon
Dodge Ram 2500 2010 SLT
Dodge Ram 2500 2010 ST
Dodge Ram 2500 2010 SXT
Dodge Ram 2500 2010 TRX
Dodge Ram 3500 1999 Base
Dodge Ram 3500 2000 Base
Dodge Ram 3500 2001 Base
Dodge Ram 3500 2002 Base
Dodge Ram 3500 2003 Laramie
Dodge Ram 3500 2003 SLT
Dodge Ram 3500 2003 ST
Dodge Ram 3500 2004 Laramie
Dodge Ram 3500 2004 SLT
Dodge Ram 3500 2004 ST
Dodge Ram 3500 2005 Laramie
Dodge Ram 3500 2005 SLT
Dodge Ram 3500 2005 ST
Dodge Ram 3500 2006 Laramie
Dodge Ram 3500 2006 SLT
Dodge Ram 3500 2006 Sport
Dodge Ram 3500 2006 ST
Dodge Ram 3500 2007 Laramie
Dodge Ram 3500 2007 SLT
Dodge Ram 3500 2007 Sport
Dodge Ram 3500 2007 ST
Dodge Ram 3500 2007 TRX4
Dodge Ram 3500 2008 Laramie
Dodge Ram 3500 2008 SLT
Dodge Ram 3500 2008 ST
Dodge Ram 3500 2008 SXT
Dodge Ram 3500 2009 Laramie
Dodge Ram 3500 2009 SLT
Dodge Ram 3500 2009 ST
Dodge Ram 3500 2009 SXT
Dodge Ram 3500 2010 Laramie
Dodge Ram 3500 2010 SLT
Dodge Ram 3500 2010 ST
Dodge Ram 4500 2008 Laramie
Dodge Ram 4500 2008 SLT
Dodge Ram 4500 2008 ST
Dodge Ram 4500 2009 Laramie
Dodge Ram 4500 2009 SLT
Dodge Ram 4500 2009 ST
Dodge Ram 4500 2010 Laramie
Dodge Ram 4500 2010 SLT
Dodge Ram 4500 2010 ST
Dodge Ram 5500 2008 Laramie
Dodge Ram 5500 2008 SLT
Dodge Ram 5500 2008 ST
Dodge Ram 5500 2009 Laramie
Mishimoto is the world's leading supplier of high-performance cooling products and was created by automotive enthusiasts for automotive enthusiasts. Since its founding in 2005, Mishimoto has more than a decade of experience working to design and manufacture superior cooling system upgrades. Day after day, the Mishimoto team works to perfect existing solutions and develop new ideas. From product planning, design and development to testing and commissioning, all processes are done in-house. No cooling system leaves the factory without being meticulously checked for quality and performance by the engineers. Mishimoto aluminium radiators from this manufacturer are popular with car fans all over the world.
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