Reinz Engine Coolant Thermostat Housing Seal - 703130800 - Reinz Engine Coolant Thermostat Housing Seal is designed to provide superior sealing and protection against leaks and corrosion in engine coolant systems. It is manufactured from high-grade materials for long-lasting durability and features a molded rubber construction for superior sealing and protection. The seal is designed to fit most engine coolant systems and is easy to install.