Mishimoto MMTS-RAM-89H High Temperature Coolant Thermostat (1989-1993 5.9L Cummins)
Get It Installed at Our Shop
Skip the Driveway — Our 9-Bay Diesel Shop in Wildwood, FL can Install this for You.
Secure Checkout
Genuine Parts
Fast Shipping
Diesel Experts
Not sure this fits your build? Call or Text Us: (352) 722-5295
Save Contact
Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the Mishimoto MMTS-RAM-89H High Temperature Coolant Thermostat (1989-1993 5.9L Cummins) you will earn 72 DIESEL DOLLARS in your SDS Fuel Tank!
The Mishimoto MMTS-RAM-89H High Temperature Thermostat is a direct-fit replacement for the malfunctioning thermostat in your 1989-1993 Dodge 5.9L Diesel. The Mishimoto thermostat has a higher opening temperature in comparison to the stock thermostat. The higher opening temperature reduces coolant flow longer to allow for faster engine warmup, making this thermostat ideal for use in cooler climates. This thermostat comes with the Mishimoto's excellent warranty to ensue this product will last the life of the truck.
Features:
- Drop-In Replacement
- Faster Warm Up Times
- Ideal For Colder Climates
- Mishimoto Lifetime Warranty
Manufacturer Warranty*:
Limited Lifetime
Limited Lifetime
Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the Mishimoto MMTS-RAM-89H High Temperature Coolant Thermostat (1989-1993 5.9L Cummins) you will earn 72 DIESEL DOLLARS in your SDS Fuel Tank!