TechSpec Applications: 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
TechSpec Engine Codes: 6BT
TechSpec Chassis Codes: D/W Series
TechSpec Includes: (1) Mishimoto Thermostat--(1) Thermostat Gasket--Mishimoto Lifetime Warranty
TechSpec Mishimoto Activation Temperature (F): 189.5
TechSpec OEM Activation Temperature (F): 180
Features:
Direct fit for 1989-1993 Dodge Ram with 5.9L Cummins
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
Mishimoto Lifetime Warranty
Install Difficulty: 2
TechSpec Applications: 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
TechSpec Engine Codes: 6BT
TechSpec Chassis Codes: D/W Series
TechSpec Includes: (1) Mishimoto Thermostat--(1) Thermostat Gasket--Mishimoto Lifetime Warranty
TechSpec Mishimoto Activation Temperature (F): 174.2
TechSpec OEM Activation Temperature (F): 180
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
Install Difficulty: 2
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 thermostat for the 1989-1993 5.9L 12v Cummins. This thermostat includes a high-quality replacement gasket and our signature Mishimoto Lifetime Warranty.
