Description
Fits
Year | Make | Engine |
1999 - 2013 | Dodge Ram | 5.9L & 6.7L Cummins |
This thermostat is perfect for warmer climates or when your truck is under heavy load or strenuous driving. It activates at a lower temperature, getting the coolant flowing earlier to reduce and keep engine temperatures low.
Part Number: MMTS - RAM - 99L
Features
- Activates at a lower temp to get coolant flowing faster
- Great for heavily modified trucks in extreme towing or racing
- Comes with both thermostats and a replacement gasket
- Opens at 180 degrees Fahrenheit


Using this thermostat is easy. First, make sure your engine is cool before starting any work. Locate the old thermostat and carefully remove it. Then, install the new thermostat and the included replacement gasket. Finally, refill the coolant as needed. When using your truck in warmer climates or under heavy load, this thermostat will automatically activate at a lower temperature to keep your engine cool. Keep an eye on your engine temperature gauge to make sure everything is working well. For maintenance, check the coolant level regularly and replace the coolant according to your vehicle's manual. Also, inspect the thermostat and gasket periodically for any signs of wear or damage. If you notice any issues, it's best to replace them right away to ensure your engine stays in good shape.