HomeBelts and Cooling > Thermostat and HousingFacet 7.8354 Engine Coolant Thermostat
Part #: 7.8354

Facet 7.8354 Engine Coolant Thermostat

⚙️ 39 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mazda, Miata and Protege
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Reliable Engine Coolant Thermostat for Mazda Miata and Protege

The Facet 7.8354 engine coolant thermostat is designed specifically for Mazda Miata and Protege models. This thermostat helps regulate engine temperature, ensuring optimal performance and preventing overheating or excessive cooling.

Key Features of Facet 7.8354 Engine Coolant Thermostat

  • Compatible with Mazda Miata and Protege vehicles
  • Precise temperature regulation for efficient engine operation
  • Durable construction for long-lasting performance
  • Direct replacement part number 7.8354 for easy fitment
  • Maintains proper coolant flow to prevent engine damage

Detailed Description of Facet 7.8354 Thermostat

The Facet 7.8354 engine coolant thermostat is engineered to maintain the correct engine operating temperature by controlling the flow of coolant through the radiator. Designed for Mazda Miata and Protege models, this thermostat ensures the engine warms up quickly and stays within the optimal temperature range. By regulating coolant flow, it helps improve fuel efficiency and reduces engine wear caused by temperature fluctuations. The part number 7.8354 corresponds to a direct fit replacement, making it a reliable choice for maintaining your vehicle's cooling system.

Common Applications and Issues Addressed

  • Prevents engine overheating by regulating coolant flow
  • Helps avoid poor fuel economy caused by improper engine temperature
  • Reduces risk of engine damage due to thermal stress
  • Eliminates symptoms of a stuck thermostat such as fluctuating temperature gauge readings
  • Supports consistent cabin heating performance in colder conditions

Installation Notes and Tips

When installing the Facet 7.8354 thermostat, ensure the engine is cool before beginning work to avoid burns. Drain the coolant system partially to prevent spills and contamination. Verify the orientation of the thermostat matches the vehicle manufacturer’s specifications for proper operation. After installation, refill the cooling system and bleed any trapped air to maintain system efficiency.

Quality Assurance and Warranty Information

Facet manufactures the 7.8354 engine coolant thermostat to meet or exceed OEM standards for fit and function. While specific warranty details are not provided, Facet products typically undergo rigorous quality control to ensure reliability and durability in automotive cooling systems.

This part fits 39 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2005MazdaMiataBaseN/AEngine coolant thermostat kit with gasket included.
2005MazdaMiataLSN/AEngine coolant thermostat kit with gasket included.
2005MazdaMiataMazdaspeedN/AEngine coolant thermostat kit with gasket included.
2004MazdaMiataBaseN/AEngine coolant thermostat kit with gasket included.
2004MazdaMiataLSN/AEngine coolant thermostat kit with gasket included.
2004MazdaMiataMazdaspeedN/AEngine coolant thermostat kit with gasket included.
2003MazdaMiataLSN/AEngine coolant thermostat kit with gasket included.
2003MazdaMiataSEN/AEngine coolant thermostat kit with gasket included.
2003MazdaMiataBaseN/AEngine coolant thermostat kit with gasket included.
2003MazdaMiataShinsenN/AEngine coolant thermostat kit with gasket included.
2002MazdaMiataLSN/AEngine coolant thermostat kit with gasket included.
2002MazdaMiataSEN/AEngine coolant thermostat kit with gasket included.
2002MazdaMiataBaseN/AEngine coolant thermostat kit with gasket included.
2001MazdaMiataLSN/AEngine coolant thermostat kit with gasket included.
2001MazdaMiataBaseN/AEngine coolant thermostat kit with gasket included.
2001MazdaMiataSEN/AEngine coolant thermostat kit with gasket included.
2001MazdaProtegeLX1.6LL4N/AEngine coolant thermostat kit with gasket included.
2001MazdaProtegeDXN/AEngine coolant thermostat kit with gasket included.
2000MazdaMiataLSN/AIncl.Gasket; Gasket included: Y
2000MazdaMiataSEN/AIncl.Gasket; Gasket included: Y
2000MazdaMiataBaseN/AIncl.Gasket; Gasket included: Y
2000MazdaProtegeDXN/AEngine coolant thermostat kit with gasket included.
2000MazdaProtegeLXN/AEngine coolant thermostat kit with gasket included.
1999MazdaMiataBaseN/AIncl.Gasket; Gasket included: Y
1999MazdaMiata10th AnniversaryN/AIncl.Gasket; Gasket included: Y
1999MazdaProtegeDXN/AEngine coolant thermostat kit with gasket included.
1999MazdaProtegeLXN/AEngine coolant thermostat kit with gasket included.
1998MazdaProtegeDXN/AEngine coolant thermostat kit with gasket included.
1998MazdaProtegeESN/AEngine coolant thermostat kit with gasket included.
1998MazdaProtegeLXN/AEngine coolant thermostat kit with gasket included.
1997MazdaProtegeDXN/AEngine coolant thermostat kit with gasket included.
1997MazdaProtegeLXN/AEngine coolant thermostat kit with gasket included.
1997MazdaProtegeESN/AEngine coolant thermostat kit with gasket included.
1996MazdaProtegeESN/AEngine coolant thermostat kit with gasket included.
1996MazdaProtegeDXN/AEngine coolant thermostat kit with gasket included.
1996MazdaProtegeLXN/AEngine coolant thermostat kit with gasket included.
1995MazdaProtegeESN/AFrom 04/12/1995; Gasket included: Y
1995MazdaProtegeLXN/AFrom 04/12/1995; Gasket included: Y
1995MazdaProtegeDXN/AFrom 04/12/1995; Gasket included: Y

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.