Mishimoto MMTS-RAM-89L Low-Temp Thermostat for 89-93 Ram 5.9L First-Gen Cummins

Low-Temperature Thermostat, fits Dodge 5.9L First-Gen Cummins 1989-1993 The 12-valve first-gen Cummins in your Ram is considered one of the best diesel engines ever produced, and for good reason. Fuel efficiency, torque, and simplicity are just a few characteristics that give the Cummins its stellar reputation. We're huge fans of the Cummins engine, which is why we’ve developed a low-temperature thermostat for the 1989-1993 5.9L 12v Cummins. This Mishimoto thermostat activates at a lower temperature (174.2°F) compared to the factory thermostat (180°F). By lowering the activation temperature, coolant flows through the radiator earlier, maintaining lower fluid temperatures. The Mishimoto low-temperature thermostat is ideal for vehicles in warmer climates, or for use in vehicles experiencing extreme driving/towing conditions. This thermostat includes a high-quality replacement gasket and our signature Mishimoto Lifetime Warranty. Lower activation temperature allows coolant to flow through the system earlier, maintaining lower coolant temperatures Ideal for vehicles in warm climates or under extreme driving/towing conditions Includes thermostat and high-quality replacement gasket