Wahler 412148.90D Engine Coolant Thermostat Assembly

The Wahler 412148.90D is a precision-engineered engine coolant thermostat assembly designed for select Volvo and Polestar applications. As an original equipment manufacturer (OEM) supplier to major automotive brands, Wahler delivers the same German-made quality found in factory installations.

Key Specifications:

• Opening temperature: 90°C (194°F)
• Includes complete thermostat assembly with housing
• Direct replacement for OEM part numbers 31293767, 31474800, and 31686046
• Manufactured in Germany to strict OEM quality standards

About Wahler:

• Leading OEM manufacturer of automotive thermostats since 1902
• Specializes in temperature and thermal management solutions
• Supplies original equipment to Volkswagen, BMW, Mercedes-Benz, Volvo, and other major automakers
• Known for excellent resistance to coolant media and vibration for long service life

The thermostat regulates engine coolant flow to maintain optimal operating temperature, preventing both overheating and inefficient cold running. A malfunctioning thermostat can cause engine overheating, increased fuel consumption, and potential engine damage. This complete assembly ensures proper temperature management for reliable engine performance and longevity.