Motorad 449-190 Engine Coolant Thermostat

Engine Coolant Thermostat for OE-Style Cooling Control

The Motorad Standard 449-190 engine coolant thermostat is built for precise temperature control in demanding cooling systems. It is specified at 192°F and includes an O-ring seal, jiggle pin weep hole, and OEM-style sealing features for direct replacement service.

Key Features

• Start-to-open temperature: 192°F for OE-specified cooling control
• Copper case and wax compound for fast response to coolant temperature changes
• Offset design with air relief valve for improved serviceability
• Includes gasket/seal with rubber O-ring sealing material
• Jiggle pin weep hole helps purge trapped air during filling
• Standard thermostat design for replacement applications
• Motorad part number 449-190

Product Details

Motorad Standard 449-190 is an engine coolant thermostat made to OE specifications and processes. The copper case and wax element are engineered for consistent opening response as coolant temperature rises, helping maintain stable engine operating temperature. This thermostat is listed for a wide range of Chrysler, Dodge, and related applications, including Chrysler 300, Chrysler Sebring, Dodge Charger, Dodge Magnum, and Dodge Stratus service needs. This part cross-references MAHLE 54990 and Stant 14349 for the same application.

Common Cooling System Issues Addressed

• Engine running too cool or too warm due to thermostat wear
• Delayed coolant flow caused by a thermostat that opens late
• Air pockets in the cooling system after service
• Temperature fluctuation from a weakened thermostat element
• Seal leakage at the thermostat housing interface

Installation Notes and Tips

Verify the OE-specified 192°F temperature before installation. Inspect the sealing surfaces, replace damaged housing components as needed, and confirm the rubber O-ring is seated correctly. The jiggle pin weep hole should be positioned to help air escape during coolant fill. Confirm fitment by year, make, and model before service on Chrysler 300, Chrysler Sebring, Dodge Avenger, Dodge Charger, Dodge Magnum, Dodge Ram 2500, Dodge Cirrus, Dodge Stratus, Chrysler Concorde, Chrysler Intrepid, and Dodge Intrepid applications.

Quality Assurance

Manufactured by an OE supplier using OEM-quality materials and safety standards. Built to meet OEM specifications for cooling-system service and consistent thermostat operation.