Facet 7.8799K Engine Coolant Thermostat with Gasket Kit

The Facet 7.8799K is a premium engine coolant thermostat kit designed to provide precise temperature regulation for Audi and Volkswagen vehicles. This Italian-manufactured thermostat replaces OEM part number 06H121113B and includes gaskets for complete installation.

Key Features:

• 95°C (203°F) opening temperature for optimal engine performance
• Includes gaskets for complete installation (K suffix designation)
• Features integrated bleeder valve for proper cooling system air purging
• Wax pellet sensing element ensures reliable mechanical operation
• Compatible with OEM part number 06H121113B
• Manufactured in Italy to OE specifications

Thermostats regulate engine temperatures by controlling coolant flow through the radiator, maintaining the critical balance between heat introduced and heat released. By accelerating engine warm-up and maintaining optimal running temperatures, the Facet 7.8799K helps prolong engine life, improve performance, and reduce fuel consumption and emissions. The thermostat is housed in the cooling system manifold and uses a wax-filled sensing element that mechanically opens the valve when coolant reaches the specified activation temperature.

Installation Note: This thermostat requires a separate O-ring seal (typically part number 06H121119E) for proper installation. Ensure proper bleeder valve positioning during installation for optimal cooling system function.