*Discontinued* 1989-1993 Cummins High Temperature Thermostat (MMTS-RAM-89H)

Discontinued

Fits

For those of you who live in colder climates or your truck has trouble reaching operating temps, these Mishimoto Thermostats are the perfect solution. They activate at a higher temp, meaning coolant stays in the engine longer delaying flow to the rad so the engine can heat up quicker. 

Part Number: MMTS-RAM-89H

• Higher activation temperature restricts coolant circulation for a longer time, providing quicker engine warmup
  
• Ideal for cold climates
  
• Includes thermostat and high-quality replacement gasket
• 189.5°F compared to the factory thermostat 180°F