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Regular Price: $62.40

Sale Price $49.95

  • Direct fit for 1989-1993 Dodge Ram with 5.9L Cummins
  • 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
  • Additional features below
  • Add coolant to your purchase
    QTY :
    ($67.95)
    QTY :
    ($43.95)
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Features

PRODUCT FEATURES

  • Direct fit for 1989-1993 Dodge Ram with 5.9L Cummins
  • 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
  • Mishimoto Lifetime Warranty

DESCRIPTION

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.

PURCHASE INCLUDES

(1) Mishimoto Thermostat
(1) Thermostat Gasket
Mishimoto Lifetime Warranty

TECH SPECS

VEHICLE SPECS

Engine Codes 6BT
Chassis Codes D/W Series
Fits Dodge D250 I6 (5.9L) 1989-1993
Dodge D350 I6 (5.9L) 1989-1993
Dodge W250 I6 (5.9L) 1989-1993
Dodge W350 I6 (5.9L) 1989-1993

PRODUCT SPECS

OEM Activation Temp C 82.2°C
OEM Activation Temp F 180°F
Mishimoto Activation Temp (Fahrenheit)174.2°F
Mishimoto Activation Temp (Celsius)79°C
WARRANTY

Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

For our complete warranty policy, please click here.

Mishimoto Lifetime Warranty on ALL Products
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