Motorad 299-189 Engine Coolant Thermostat

OE-Style Thermostat for Mitsubishi Cooling Systems

Motorad 299-189 is an engine coolant thermostat built to OE specifications for precise temperature control in the cooling system. It is listed for 2011-2012 Mitsubishi Eclipse and 2011-2012 Mitsubishi Galant, making it a direct-fit option for these applications.

The Motorad Standard line focuses on OEM-style replacement parts for everyday service work. For Mitsubishi Eclipse and Mitsubishi Galant cooling system repairs, 299-189 provides the fit and construction details expected from a standard replacement thermostat.

Key Features

• Engine coolant thermostat with OEM design and grade type
• Copper case with steel construction for durability
• Wax compound element for responsive coolant temperature changes
• Start-to-open temperature: 189°F (87.22°C)
• Sealing flange outside diameter: 2.35 in. (59.69 mm)
• Height between flanges: 1.77 in. (44.96 mm)
• Jiggle pin weep hole included
• Gasket or seal included; O-ring seal type
• Fits 2011-2012 Mitsubishi Eclipse and 2011-2012 Mitsubishi Galant

Detailed Description

Motorad 299-189 is engineered as an OE-style engine coolant thermostat for vehicles that require stable coolant regulation and accurate opening temperature control. The copper case and wax compound are specified to react quickly to coolant temperature changes, helping the cooling system maintain proper operating range. This part number is a strong match for Mitsubishi Eclipse and Mitsubishi Galant owners looking for a standard replacement thermostat with OEM specifications and processes.

This part cross-references 189-992 and 1305A278 for the same application. Motorad 299-189 is also identified under the Motorad Standard line, which is positioned around OE-style replacement components for routine cooling system service.

What It Helps Address

• Engine running too cool or too hot due to thermostat wear
• Delayed coolant flow regulation during warm-up
• Temperature fluctuation in the cooling system
• Coolant seepage at the thermostat sealing surface
• Service replacement needs on Mitsubishi Eclipse and Mitsubishi Galant cooling systems

Installation Notes and Tips

Verify the thermostat housing and sealing surfaces are clean before installation. Replace the gasket or seal as required by the application, and confirm the O-ring seal seats correctly. Check coolant level and bleed air from the system after service to help restore normal operation. Confirm fitment by year, make, and model before ordering Motorad 299-189.

Quality Assurance

Manufactured with OEM-quality materials and safety standards by an OE supplier, this thermostat is built to meet OEM specifications and processes for standard cooling system service.