Facet 7.8649 Engine Coolant Thermostat with Gasket 82°C Opening Temperature

Facet is a leading European aftermarket manufacturer specializing in engine management components and thermostats, and the 7.8649 engine coolant thermostat delivers OE-equivalent quality and performance. Manufactured in Italy, this precision-engineered thermostat ensures optimal engine temperature regulation for select Infiniti and Nissan applications.

Key Features:

• 82°C (180°F) opening temperature for precise thermal management
• 64mm outer diameter, 28mm inner diameter, 43mm height
• Includes gasket/seal for complete installation
• Features vent hole for proper air bleeding during coolant circulation
• OE-equivalent quality manufactured to original equipment specifications

Engine coolant thermostats regulate temperatures by controlling coolant flow through the radiator, ensuring optimal balance between heat introduced and released. By accelerating engine preheating and constantly regulating running temperature, the thermostat prolongs engine life, improves performance, and reduces fuel consumption and emissions. The thermostat operates mechanically through expansion of a wax and aluminum mixture inside the sensing element, which opens a valve when the activation temperature is exceeded.

OEM Cross-Reference Numbers:

• Infiniti: 21200AD201, 21200AD21A
• Nissan: 21200AD200, 21200AD201, 21200AD21A, 21200BN300, 21200BN301

This thermostat is designed for installation in the engine's cooling system and provides reliable temperature control to maintain optimal operating conditions across varying load and speed conditions.