Calorstat TH6845.82J Engine Coolant Thermostat

Engine Coolant Thermostat for Chrysler, Dodge, Jeep

Calorstat TH6845.82J is a standard engine coolant thermostat built for precise coolant flow control and stable operating temperature. It opens at 180°F (82°C) and includes a gasket O-ring seal for a direct replacement on a range of Chrysler, Dodge, Jeep, and Ram applications.

Key Features

• Standard engine coolant thermostat for cooling system service
• Start-to-open temperature: 180°F / 82°C
• Includes gasket O-ring seal
• Rubber seal material for sealing support
• Sealing flange outside diameter: 2.12 in.
• Height between flanges: 1.06 in.
• Calorstat TH6845.82J replacement thermostat

Detailed Description

This Calorstat engine coolant thermostat is specified for vehicles that use an 82°C / 180°F opening temperature, helping regulate coolant circulation as the engine reaches operating temperature. The included gasket O-ring seal supports a proper seal at the housing interface, and the standard design matches common thermostat service needs for Jeep Liberty, Dodge Dakota, Dodge Nitro, Dodge Ram 1500, Dodge Ram 2500, Jeep Commander, Jeep Grand Cherokee, Chrysler Aspen, Dodge Durango, and Mitsubishi Raider applications. The TH6845.82J part number is also useful when cross-referencing thermostat replacements for the same application.

This part cross-references Monroe Shocks & Struts (e.g., 420180, 449180) for the same application.

Vehicle Fitment

• Fits 2002-2013 Jeep Liberty, N/A. Opening Temp: 82 C / 180 F
• Fits 2011-2013 Ram 1500, N/A. Opening Temp: 82 C / 180 F
• Fits 2012 Dodge Dakota, N/A. Opening Temp: 82 C / 180 F
• Fits 2000-2010 Dodge Dakota, N/A. Opening Temp: 82 C / 180 F
• Fits 2007-2011 Dodge Nitro, N/A. Opening Temp: 82 C / 180 F
• Fits 2011 Ram Dakota, N/A. Opening Temp: 82 C / 180 F
• Fits 2002-2010 Dodge Ram 1500, N/A. Opening Temp: 82 C / 180 F
• Fits 2009-2010 Dodge Ram 2500, N/A. Opening Temp: 82 C / 180 F
• Fits 2001-2007 Dodge Ram 2500, N/A. Opening Temp: 82 C / 180 F
• Fits 2006-2010 Jeep Commander, N/A. Opening Temp: 82 C / 180 F
• Fits 1999-2010 Jeep Grand Cherokee, N/A. Opening Temp: 82 C / 180 F
• Fits 2007-2009 Chrysler Aspen, N/A. Opening Temp: 82 C / 180 F
• Fits 2000-2009 Dodge Durango, N/A. Opening Temp: 82 C / 180 F
• Fits 2006-2009 Mitsubishi Raider, N/A. Opening Temp: 82 C / 180 F

Common Cooling System Issues

• Engine running too cool or too hot due to thermostat wear
• Delayed warm-up and inconsistent cabin heat
• Temperature fluctuation during stop-and-go driving
• Coolant flow control problems caused by a sticking thermostat
• Leak concerns at the thermostat housing seal area

Installation Notes and Tips

Verify the thermostat opening temperature and housing dimensions before installation. Clean the sealing surfaces thoroughly, inspect the thermostat housing for corrosion or damage, and replace the gasket O-ring seal during service. Confirm the application against the vehicle’s cooling system configuration for Jeep Liberty, Dodge Dakota, Dodge Nitro, Dodge Ram 1500, and related models before reassembly.

Quality Assurance

Calorstat cooling components are built for replacement service in temperature-controlled engine systems. This thermostat is specified with a 180°F opening point and includes the sealing gasket O-ring needed for installation.