Facet 7.8954S Engine Coolant Thermostat

Engine Coolant Thermostat for Subaru Applications

Facet 7.8954S is an engine coolant thermostat for Subaru cooling system service. It is a direct-fit replacement for select Legacy, Outback, Tribeca, Impreza, and Forester applications across the listed model years.

• Engine coolant thermostat for cooling system temperature control
• Fits 2010-2014 Subaru Legacy, N/A
• Fits 2010-2014 Subaru Outback, N/A
• Fits 2008-2014 Subaru Tribeca, N/A
• Fits 2006-2011 Subaru Impreza, N/A
• Fits 2006-2010 Subaru Forester, N/A
• Facet part number 7.8954S for catalog and service matching

Detailed Product Overview

This thermostat regulates coolant flow based on engine temperature, helping the cooling system reach and maintain proper operating range. For Subaru Legacy and Subaru Outback service, as well as Tribeca, Impreza, and Forester cooling repairs, Facet 7.8954S provides a straightforward replacement option for the listed applications.

Common Cooling System Issues

• Engine running too cool or too warm
• Delayed warm-up after cold starts
• Temperature gauge fluctuation
• Cooling system service on a leaking or sticking thermostat
• Restoring stable coolant circulation in Subaru Legacy, Outback, Tribeca, Impreza, or Forester models

Installation Notes and Tips

Verify engine application against the vehicle’s cooling system before installation. Inspect the thermostat housing, gasket sealing surfaces, and coolant condition during service, and refill the system with the correct coolant specification after replacement. Confirm proper operation by checking engine temperature during warm-up.

Quality Assurance

Facet is a recognized aftermarket brand for engine management and thermal control components. Part number 7.8954S is cataloged for the listed Subaru fitments and cross-references Facet 7.8954S for the same application.