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Fits 1999 to 2010 Dodge Ram 2500, Ram 3500, Ram 4500 and 1 more model, and 1 more make. See every vehicle
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 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 and 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.
Warranty: Lifetime Warranty
| Year | Make | Model | Submodel | Engine |
|---|---|---|---|---|
| 1999 - 2002 | Dodge | Ram 2500 | Base, Custom, SLT | |
| 2003 | Dodge | Ram 2500 | Laramie, SLT, ST | 5.9L 359 I6 |
| 2004 | Dodge | Ram 2500 | SLT, ST | 5.9L 359 I6 |
| 2005 | Dodge | Ram 2500 | Laramie, SLT, SLT Daytona, ST | |
| 2006 | Dodge | Ram 2500 | Laramie, Power Wagon, SLT, SLT Night Runner Sport, SLT Sport, ST, Sport, TRX4 | |
| 2007 | Dodge | Ram 2500 | Laramie, Power Wagon, SLT, SLT Sport, ST, Sport, TRX4 | |
| 2008 | Dodge | Ram 2500 | Laramie, Power Wagon, SLT, SLT Big Horn, SLT Sport, ST, SXT | |
| 2009 | Dodge | Ram 2500 | Crew, Laramie, Power Wagon, SLT, ST, SXT | |
| 2010 | Dodge | Ram 2500 | Laramie, Power Wagon, SLT, ST, SXT, TRX | |
| 1999 | Dodge | Ram 3500 | Base, Custom, SLT | |
| 2000 - 2002 | Dodge | Ram 3500 | Base, Custom | |
| 2003 - 2005 | Dodge | Ram 3500 | Laramie, SLT, ST | 5.9L 359 I6 |
| 2006 | Dodge | Ram 3500 | Laramie, SLT, ST, Sport | 5.9L 359 I6 |
| 2007 | Dodge | Ram 3500 | Laramie, SLT, ST, Sport, TRX4 | |
| 2008 - 2010 | Dodge | Ram 3500 | Laramie, SLT, ST, SXT | 6.7L 408 I6 |
| 2008 | Dodge | Ram 4500 | Base, Laramie, SLT, ST | 6.7L 408 I6 |
| 2009 - 2010 | Dodge | Ram 4500 | Laramie, SLT, ST | 6.7L 408 I6 |
| 2008 | Dodge | Ram 5500 | Base, Laramie, SLT, ST | 6.7L 408 I6 |
| 2009 - 2010 | Dodge | Ram 5500 | Laramie, SLT, ST | 6.7L 408 I6 |
| 2011 | Ram | 2500 | Laramie, Laramie Longhorn, Outdoorsman, Power Wagon, SLT, SLT Sport, ST, SXT | |
| 2012 | Ram | 2500 | Hemi Sport, Laramie, Laramie Longhorn, Outdoorsman, Power Wagon, R/T, SLT, ST | |
| 2013 | Ram | 2500 | Big Horn, Hemi Sport, Laramie, Laramie Longhorn, Lone Star, Outdoorsman, Power Wagon, R/T, SLT, ST, SXT, Tradesman | |
| 2011 - 2012 | Ram | 4500 | Laramie, SLT, ST | 6.7L 408 I6 |
| 2013 | Ram | 4500 | Laramie, SLT, ST, Tradesman | 6.7L 408 I6 |
| 2011 - 2012 | Ram | 5500 | Laramie, SLT, ST | 6.7L 408 I6 |
| 2013 | Ram | 5500 | Laramie, SLT, ST, Tradesman | 6.7L 408 I6 |