Motorad 5449-190 Engine Coolant Thermostat

Engine Coolant Thermostat for Chrysler and Dodge

Motorad UltraStat 5449-190 is an engine coolant thermostat built for OE-specified 192°F operation and steady coolant control. It serves Chrysler and Dodge applications including Chrysler 300, Sebring, Concorde, Intrepid, and Dodge Charger, Magnum, and Stratus models.

The UltraStat line focuses on durable thermostat construction and consistent temperature regulation. This Motorad 5449-190 thermostat includes a rubber seal, a jiggle pin weep hole for air bleeding, and a heavy-gauge stainless steel design for corrosion resistance and long service life.

Key Features

• OE-specified 192°F opening temperature
• Heavy-gauge stainless steel construction for corrosion resistance
• Rubber gasket/seal included
• Jiggle pin weep hole for easier air purge during service
• Sealing flange outside diameter: 2.13 in
• Flange thickness: 0.05 in
• Motorad UltraStat 5449-190 thermostat for cooling system temperature control

Detailed Description

This engine coolant thermostat regulates coolant flow to help the engine reach and maintain the correct operating temperature. Motorad UltraStat 5449-190 is built with stainless steel components for corrosion resistance and uses BLVT valve technology to reduce thermal shock to cooling system parts. It is a direct-fit style thermostat for Chrysler 300, Chrysler Sebring, Dodge Charger, Dodge Magnum, and related Chrysler and Dodge platforms listed in the fitment data.

This part cross-references Dorman - First Stop 46349 for the same application. The Motorad 5449-190 part number is also referenced as 95449190, MU544990, and PM190-9445.

What It Helps Address

• Engine running too cool or taking too long to reach operating temperature
• Temperature fluctuation caused by a worn thermostat
• Coolant flow control issues in Chrysler and Dodge cooling systems
• Corrosion-related thermostat wear
• Air trapped in the cooling system after service

Installation Notes and Tips

Verify the OE-specified 192°F temperature before installation. Replace the thermostat with the included rubber seal, and confirm the sealing flange dimensions match the housing. The jiggle pin weep hole should be positioned to help purge trapped air during refill and bleeding. Always follow the vehicle service procedure for coolant refill and air bleeding after installation.

Quality Assurance

Motorad UltraStat thermostats use heavy-gauge stainless steel construction and corrosion-resistant materials to support long-term cooling system service. BLVT valve technology is used to reduce thermal shock to cooling system components.