Rein Automotive OE quality thermostat assemblies install, fit and perform the way the original manufacturer intended. This ensures a smooth and easy installation, just as one would expect to find with OE quality. These assemblies are designed to meet or exceed the OE materials used. Rein thermostats are produced with high-quality metals and components to ensure proper durability and service life. The thermostats are temperature calibrated to have a consistent and precise response suiting cooling system needs. Our quality thermostat assemblies aim to provide the professional repair technician and vehicle owner peace of mind and trust that is expected from an OE quality component.

- Matches original equipment design specifications.
- Direct fitments allows easy installation.
- Manufactured to strict engineering standards/specifications in materials and tolerances.
- Thermostat set to maintain optimal running temperature.


OEM Part #s


11-53-8-635-689 / 11 53 8 635 689 / 11538635689

11-53-8-648-791 / 11 53 8 648 791 / 11538648791

11-53-8-636-594 / 11 53 8 636 594 / 11538636594

11-53-7-633-477 / 11 53 7 633 477 / 11537633477


MFR part # CTA0080