Rein Upgraded Aluminum Thermostat Assembly

The Rein Upgraded Aluminum Thermostat Assembly is an engine coolant thermostat and housing replacement. It regulates coolant temperature so the engine stays in its proper operating range. Rein's upgraded design uses an aluminum housing in place of the plastic housing on many original assemblies. This makes it a durable thermostat housing replacement for vehicles prone to cracking or warping.

Key Features:

• Aluminum housing: Addresses common failure points found in original plastic designs.
• OE-matched fit and function: Built to match original specifications for a direct-fit replacement.
• Calibrated thermostat: Each unit is calibrated to maintain proper engine operating temperature.
• Supporting components: Many assemblies include items such as an O-ring and temperature sensor, depending on the part number.

Rein is a CRP Automotive brand known for OE-quality replacement and upgraded parts for European and import vehicles. A Rein thermostat assembly helps restore reliable cooling system performance and protects the engine from overheating or running too cool.