Facet 7.8417 Engine Coolant Thermostat

Engine Coolant Thermostat for Asian Applications

Facet 7.8417 is an engine coolant thermostat for a wide range of Mitsubishi, Kia, Hyundai, Lexus, and Toyota applications. It is specified with an 180°F opening temperature on many vehicles and 82°C on select Lexus and Toyota models, making it a direct-fit cooling system service part for the listed applications.

Key Features

• Engine coolant thermostat for factory-style cooling system service
• Facet part number 7.8417
• 180°F opening temperature on many Mitsubishi, Kia, Hyundai, Chrysler, Dodge applications
• 82°C opening temperature on select Lexus and Toyota applications
• Fits multiple model years across import and domestic platforms

Compatible Vehicle Applications

• Fits 2003-2011 Mitsubishi Eclipse, N/A
• Fits 2007-2011 Mitsubishi Outlander, N/A
• Fits 2001-2010 Kia Optima, N/A
• Fits 2007-2010 Kia Rondo, N/A
• Fits 2005-2010 Kia Sportage, N/A
• Fits 2008-2010 Lexus SC430, N/A
• Fits 2001-2009 Hyundai Santa Fe, N/A
• Fits 2005-2009 Hyundai Tucson, N/A
• Fits 2007-2009 Lexus GX470, N/A
• Fits 2007-2009 Mitsubishi Galant, N/A
• Fits 2008-2009 Toyota 4Runner, N/A
• Fits 2008-2009 Toyota Sequoia, N/A
• Fits 2007-2009 Toyota Tundra, N/A
• Fits 2003-2008 Hyundai Tiburon, N/A
• Fits 2007 Lexus GS430, N/A
• Fits 2007 Lexus LX470, N/A
• Fits 2007 Lexus SC430, N/A
• Fits 2007 Toyota 4Runner, N/A
• Fits 2007 Toyota Land Cruiser, N/A
• Fits 2007 Toyota Sequoia, N/A
• Fits 2004-2006 Kia Amanti, N/A
• Fits 2003-2006 Kia Sorento, N/A
• Fits 2006 Lexus GX470, N/A
• Fits 2006 Lexus LX470, N/A
• Fits 2006 Toyota Land Cruiser, N/A
• Fits 1995-2005 Chrysler Sebring, N/A
• Fits 1995-2005 Dodge Stratus, N/A
• Fits 1999-2005 Hyundai Sonata, N/A
• Fits 2002-2005 Hyundai XG350, N/A
• Fits 2002-2005 Kia Sedona, N/A
• Fits 2003-2005 Mitsubishi Montero, N/A
• Fits 1994-1997 Mitsubishi Montero, N/A
• Fits 2001 Hyundai XG300, N/A
• Fits 1995-2000 Chrysler Cirrus, N/A
• Fits 1995-2000 Dodge Avenger, N/A
• Fits 1997-1998 Mitsubishi Montero Sport, N/A
• Fits 1997 Mitsubishi Diamante, N/A
• Fits 1992-1995 Mitsubishi Diamante, N/A

What This Thermostat Helps Address

• Engine running too cool or taking too long to reach operating temperature
• Overheating caused by a thermostat that is stuck closed
• Temperature fluctuations from a worn coolant thermostat
• Poor heater performance during cold starts
• Cooling system service on Mitsubishi Eclipse, Kia Optima, Hyundai Santa Fe, and related models

Installation Notes and Tips

Verify the opening temperature before installation: many applications use 180°F, while select Lexus and Toyota models use 82°C. Confirm the vehicle year, make, and model against the listed fitment, including the notes for 07/2006 split applications on certain Lexus and Toyota vehicles. Replace coolant and inspect the thermostat housing and sealing surfaces during service.

Quality Assurance

Facet cooling system components are cataloged for specific vehicle applications and temperature ratings. Part number 7.8417 is listed for direct fitment across the vehicles shown above, including Mitsubishi Montero, Toyota Tundra, and Hyundai Tucson applications.