Facet 7.8404 Engine Coolant Thermostat

Engine Coolant Thermostat for Toyota and Lexus

Facet 7.8404 is an engine coolant thermostat for a wide range of Toyota, Lexus, Scion, Mitsubishi, Pontiac, Chevrolet, Ford, and Dodge applications. It is specified with a 179°F opening temperature on many listings, making it a direct-fit choice for temperature control in supported vehicles.

Key Features

• Engine coolant thermostat for cooling system temperature regulation
• 179°F opening temperature listed for many applications
• Compatible with many Toyota Camry, Corolla, Highlander, RAV4, and Avalon applications
• Also listed for Lexus ES350, RX350, RX450h, and related models
• Facet part number 7.8404 for catalog and service reference

Detailed Description

Facet 7.8404 is an OE-style engine coolant thermostat used to regulate coolant flow and help the engine reach and maintain proper operating temperature. This part number appears across many Toyota and Lexus platforms, including Toyota Camry, Corolla, Highlander, RAV4, Sienna, Tacoma, Tundra, and Avalon, as well as Lexus ES350, RX350, RX450h, ES300, and RX300 applications. It is also listed for select Scion, Mitsubishi, Pontiac Vibe, Chevrolet Prizm, Ford Taurus, and Dodge Colt models. For buyers searching for a Facet 7.8404 thermostat for Toyota Camry or a thermostat for Lexus RX350, this listing provides the fitment detail needed for catalog matching.

What It Helps Address

• Engine running too cool or taking too long to warm up
• Temperature fluctuations during normal driving
• Cooling system flow control concerns
• Check engine conditions related to thermostat performance
• Cabin heat output affected by improper engine temperature

Installation Notes and Tips

Verify the engine code and exact application before ordering, since some model years have multiple thermostat listings. Match the opening temperature and any fitment notes shown for your vehicle, especially on Mitsubishi Eclipse, Galant, Mirage, and Montero Sport applications where notes vary by year. Clean the housing sealing surface before installation and inspect the coolant condition during service. For Toyota Camry, Corolla, and Sienna applications, confirm the thermostat orientation and housing style against the original part.

Quality Assurance

Facet 7.8404 is cataloged as an engine coolant thermostat for direct vehicle-specific fitment across the listed applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.