Motorad 949-198 Engine Coolant Thermostat Housing Assembly

Integrated Housing Thermostat for OE Cooling Control

The Motorad 949-198 integrated housing thermostat is built for precise coolant temperature control in demanding engine cooling systems. It is a direct-fit engine coolant thermostat housing assembly with a 198°F opening temperature and OE-specified design details for service replacement on select applications.

Fits 2008-2009 Saturn Astra, N/A. This Motorad Integrated Housing Thermostat line is engineered as an OE-style cooling system service part, combining the thermostat and housing into one assembly for a cleaner replacement on vehicles that use an integrated design.

Key Features

• Part number: 949-198
• Engine coolant thermostat housing assembly
• 198°F start-to-open temperature
• Integrated housing design for OE-style replacement
• Aluminum, stainless steel, and copper construction
• 4 bolt holes and 1 outlet port
• 1.35 in outlet diameter
• Silver finish
• No bleeder hole and no jiggle pin

Detailed Product Description

Motorad 949-198 is manufactured to OE specifications using OEM-quality materials and processes. The copper case and wax compound are selected for fast reaction to coolant temperature changes, helping the thermostat regulate engine operating temperature with consistent response. This integrated housing thermostat is designed for vehicles that use a combined thermostat and housing assembly, including 2008-2009 Saturn Astra applications.

This part cross-references Dorman OE Solutions 902-2119 for the same application. The Motorad 949-198 also cross-references Stant 50359.

What This Part Helps Address

• Engine running too cool or too hot due to thermostat control issues
• Coolant temperature instability during warm-up and normal driving
• Leaking or worn thermostat housing assembly
• Service replacement needs on OE-integrated cooling system designs
• Temperature regulation concerns on 2008-2009 Saturn Astra models

Installation Notes and Tips

Verify the 198°F temperature rating and outlet diameter before installation. This assembly does not include a gasket or seal, bolts, or mounting hardware, so the existing service parts or separately sourced components must be confirmed before beginning the repair. Always inspect the mating surfaces, coolant condition, and housing alignment during installation.

For fitment-specific service, confirm the vehicle as a 2008-2009 Saturn Astra with the OE-specified integrated housing thermostat design. The Motorad 949-198 is intended for direct replacement where the original assembly uses a 4-bolt, single-outlet configuration.

Quality Assurance

Motorad manufactures this thermostat housing assembly with OEM-quality materials and safety standards as an OE supplier. It is built to OE specifications and processes for dependable cooling system service in the applications listed.