1999-2013 Cummins Low Temperature Thermostat (MMTS-RAM-99L)

Keep your Cummins running cool when the work gets heavy. Mishimoto’s Low-Temp Thermostat drops your activation point to 180°F, pushing coolant through the system sooner and keeping engine temps in check when towing, hauling, or beating on the truck in warmer climates. It’s a direct-fit upgrade for your tired factory unit, delivering better reliability, cooler operating temps, and the peace of mind that comes with Mishimoto’s Lifetime Warranty.

Part Number: MMTS-RAM-99L

• O-ring Included
• 180°F activation for earlier coolant flow
• Helps reduce and maintain lower engine temperatures
• Ideal for warm climates and heavy towing/driving 
• Lower 180°F activation temp vs 190°F OEM
• Direct-fit for 1999-2013 Dodge Ram 5.9L/6.7L Cummins

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