Victor TX3080D Engine Coolant Thermostat Insert 80°C / 176°F

The Victor TX3080D is a replacement engine coolant thermostat insert engineered to maintain optimal operating temperature in select Audi, Volkswagen, and Porsche engines. This thermostat insert opens at the OE-specified temperature of 80°C (176°F), ensuring rapid engine warm-up and reliable coolant regulation throughout normal operation.

The thermostat functions as a valve within the engine cooling circuit — remaining closed during cold start to allow the engine to reach operating temperature quickly, then opening to direct coolant through the radiator once the threshold temperature is reached. This precise regulation is critical for engine efficiency, fuel economy, and emissions control.

Key Features:

• OE-specified opening temperature: 80°C / 176°F
• Thermostat insert style — sold individually
• Meets or exceeds original equipment specifications
• Wax-pellet actuator design for accurate, repeatable temperature response
• Direct-fit replacement for proper sealing and easy installation
• Compatible with select Audi, Volkswagen, and Porsche applications

OEM Cross-Reference Part Numbers: 022121113, 075121113D, 075121113B, 075121113D71, 075121113E, 2.145.80.312, 95510611300, H78010401, W0133-1629016, W0133-1737531

Replacing a failed or stuck thermostat restores proper coolant flow, prevents engine overheating, and returns the engine to its optimal operating temperature range. This insert is sold individually.