Mishimoto MMTS‑RAM‑99L Low Temperature Coolant Thermostat – Low-Temp Thermostat for 1998.5-2013 Dodge Ram 5.9L/6.7L Cummins
Mishimoto MMTS‑RAM‑99L Low Temperature Coolant Thermostat – Low-Temp Thermostat for 1998.5-2013 Dodge Ram 5.9L/6.7L Cummins
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Product Description
The Mishimoto MMTS-RAM-99L Low Temperature Coolant Thermostat is engineered as a direct replacement thermostat for 1998.5-2013 Dodge Ram 2500/3500 trucks equipped with 5.9L and 6.7L Cummins engines. Designed to activate at a lower temperature than stock, this thermostat allows coolant to begin flowing through the system sooner, helping maintain cooler engine temperatures under heavy loads, in hot climates, or during extreme towing and driving conditions.
Featuring a precise lower activation temperature (~180°F) compared to standard OEM units, this thermostat promotes improved cooling system reliability and reduces the risk of overheating and engine damage. It installs easily as a direct-fit replacement with no modifications required and is a popular choice for truck owners looking to enhance cooling performance.
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FAQ
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Most products ship in 3–7 days. Some will take longer. If a product needs more time, it will say so on its product page.
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Our warranty matches the manufacturer’s warranty.
If a part fails or has a defect, we will work with the manufacturer to get it replaced.
We do not warranty parts that were:
Installed incorrectly
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