The Mishimoto MMTS-RAM-94H High Temperature Thermostat for your 1998.5-2013 Dodge 5.9L/6.7L Cummins is an excellent option for those in colder climates. 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 Cummins High-Temperature Thermostat! This thermostat is designed as a direct-fit replacement for your aged factory unit.
The Mishimoto thermostat has a higher activation temperature (205°F) compared to the factory thermostat (190°F for 9910 and 2013 trucks & 200°F for 10-12 trucks). The higher activation temperature restricts coolant flow longer to allow a quicker engine warm-up, making this thermostat ideal for use in cold climates. As with all our products, this thermostat includes the Mishimoto Lifetime Warranty, ensuring superior product quality and craftsmanship.
XDP continues to closely monitor the COVID-19 (Coronavirus) outbreak. As an integral part of the automotive supply chain, at this point all call centers and distribution centers remain fully operational to ensure we keep vital service components flowing to vehicles used in transport of goods and emergency response. To ensure the health of our employees, families, and customers, we have made the following procedural changes:
UPDATE: Effective 6/1 Customer Service resumes normal business hours of M-F 8:30 â€“ 9:00pm EST.
Effective 3/18 we have decided to temporarily close both of our retail stores in NJ and NV.
Our technical sales team remains available Mon-Fri 8:30am-9pm and Saturday 10:30am-7pm EST.
All employees have been encouraged to follow the CDC's recommendations at home and in the workplace.
The circumstances of this virus are fast moving, as such, we will continue to update you with any further operational adjustments as needed. As always, we value your business and appreciate your patience as we manage this situation together.