Rein 06H-121-113 B Engine Coolant Thermostat Insert 95°C

The Rein 06H-121-113 B is an OE-quality engine coolant thermostat insert designed for Audi and Volkswagen vehicles equipped with 2.0L turbocharged TSI/TFSI engines. This precision-engineered thermostat maintains optimal engine operating temperature by regulating coolant flow between the engine and radiator.

Key Features:

• 95°C (203°F) temperature rating for precise thermal control
• OE-quality construction meets or exceeds original equipment specifications
• Temperature-calibrated wax pellet provides consistent and precise response
• High-quality metals and components ensure proper durability and service life
• Direct replacement for OEM part number 06H121113B
• Also known as Rein part number CTI0010

Installation Notes:

• Requires thermostat O-ring 06H 121 119 E (sold separately)
• Compatible with specific water pump assemblies - refer to vehicle specifications
• Proper cooling system bleeding is essential during installation

The thermostat functions by closing when engine temperature is low, allowing coolant to circulate within the engine until it reaches optimal operating temperature. Once the engine exceeds its ideal temperature, the valve opens to allow coolant flow through the radiator for cooling. This Rein thermostat insert provides the reliable performance and precise fit expected from OE-quality replacement parts.