Rein Engine Coolant Thermostat CTN0038 – for Audi & Volkswagen 4.2L V8 Vehicles

The Rein Engine Coolant Thermostat CTN0038 is a premium OE-quality replacement designed for Audi and Volkswagen models with the 4.2L V8 engine. It maintains optimal engine temperature by regulating coolant flow, preventing overheating, and improving efficiency. Built to meet or exceed OEM specifications, this thermostat ensures reliable performance and long service life.

Key Features & Benefits

• OE-Quality Design: Manufactured to meet original equipment specifications for perfect fit and function.
• Precise Temperature Regulation: Opens and closes at the correct temperature to keep the engine running efficiently.
• Durable Construction: Built with high-quality materials resistant to wear, corrosion, and temperature extremes.
• Application: Compatible with Audi A6, A8, S6, S8, RS6 and Volkswagen Touareg, Phaeton with 4.2L V8 engine (2000-2006).
• Part Number: CTN0038 – Direct replacement for OEM thermostat.

Vehicle Fitment

Technical Specifications

Installation Notes

Installation is straightforward for experienced mechanics; replace the thermostat and gasket following standard procedures.

About Rein Automotive

Rein Automotive is a trusted OE supplier known for producing high-quality replacement parts that match or exceed original equipment standards.