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 high-temperature thermostat for the 1989-1993 5.9L 12v Cummins. This Mishimoto thermostat activates at a higher temperature (189.5?F) compared to the factory thermostat (180?F). By raising the activation temperature, coolant flows through the system later, promoting quicker engine warmup. The Mishimoto high-temperature thermostat is ideal for vehicles in cold climates, where rapid warmup and quicker in-cabin heat is vital. This thermostat includes a high-quality replacement gasket and our signature Mishimoto Lifetime Warranty.
- air_freight_prohibited:
- false
- not_carb_approved:
- false
- carb_acknowledgement_required:
- false
- ltl_freight_required:
- false
- prop_65:
- Unknown
- part_type:
- automotive
- epa:
- N/A
- regular_stock:
- false
- Mod Category:
- Cooling
- Mod Subcategory:
- Thermostat
