Rein CTA0055 Engine Coolant Thermostat Housing Assembly

OE Quality Thermostat Housing Assembly

Rein CTA0055 is an engine coolant thermostat housing assembly built for direct replacement service on select Volkswagen and Audi applications. It is engineered to match original equipment design specifications, with temperature calibration that helps maintain the engine’s normal operating range.

Fits 2013-2014 Volkswagen Beetle, N/A. Fits 2010-2014 Volkswagen Golf, N/A. Fits 2010-2014 Volkswagen Jetta, N/A. Fits 2010-2013 Audi A3, N/A.

• Matches original equipment design specifications
• Direct fitment for easier installation
• Built to strict engineering standards for materials and tolerances
• Thermostat calibrated to maintain optimal running temperature
• OE-quality construction using high-quality metals and components

Detailed Product Overview

This Rein thermostat housing assembly is designed as a direct OE-style replacement for vehicles that need precise coolant temperature control and dependable housing integrity. The part number CTA0055 is intended for service on Volkswagen Beetle, Volkswagen Golf, Volkswagen Jetta, and Audi A3 applications listed above, making it a focused solution for cooling system repair on these platforms. Rein CTA0055 is manufactured to meet or exceed OE material expectations and is built for consistent response in everyday driving conditions.

This part cross-references URO 03L121111AC for the same application.

Common Cooling System Issues

• Coolant temperature that runs too cold or too hot
• Thermostat housing leaks at the cooling system connection points
• Check engine lights related to thermostat performance
• Slow engine warm-up after startup
• Unstable cabin heat caused by coolant flow problems

Installation Notes

Verify the vehicle’s engine code and cooling system configuration before installation. Inspect mating surfaces, hoses, seals, and coolant condition during service, and follow the manufacturer’s bleed procedure after replacement to remove trapped air from the system. Because this is an application-specific thermostat housing assembly, confirm the fitment listing for your exact Volkswagen or Audi model before ordering.

Quality Assurance

Rein manufactures this thermostat housing assembly with high-quality metals and components and calibrates the thermostat for consistent temperature response. CTA0055 is backed by a 24-month or 24,000-mile warranty.