Mishimoto 1989–1993 5.9L Cummins High-Temperature Thermostat for Dodge

This low-temperature thermostat from Mishimoto reduces engine coolant operating temperature for first-generation 5.9L 12-valve Cummins engines in 1989–1993 Dodge trucks by opening earlier than stock, allowing coolant to flow through the radiator sooner to help manage heat under warm-climate driving or heavy towing. Designed specifically for the 1989–1993 5.9L 12v Cummins platform, the unit activates at 174.2°F (compared with the factory 180°F) and ships with a high-quality replacement gasket for straightforward installation.

Features:

• Low-temperature activation at 174.2°F
• Factory comparison: 180°F opening temperature
• Engine compatibility: 5.9L 12v Cummins
• Ideal for warm-climate and towing use
• Includes high-quality replacement gasket

Contents:

• 1 thermostat
• 1 high-quality replacement gasket