Description
Sierra’s 18-3647 Thermostat Kit is designed for GM engines with standard cooling systems requiring a 160° thermostat in 1987 and newer applications, providing a complete replacement solution for reliable temperature regulation. The kit includes the 18-3649 thermostat along with multiple gaskets and sealing components, including the 18-2552-9 thermostat cover gasket, 18-2553-9 thermostat gasket, 18-2844-9 thermostat cover gasket, 18-2917-9 thermostat housing gasket, 18-7173-9 O-ring, and 18-0398-9 thermostat gasket for a comprehensive service installation. Each component is engineered to support proper sealing and consistent cooling system performance. Each Sierra product meets or exceeds the original equipment specifications it replaces, ensuring dependable fit and function.
Features
- Complete thermostat kit designed for GM engines with standard cooling systems requiring 160° operation (1987 and newer)
- Includes 18-3649 thermostat for reliable engine temperature regulation
- Comes with multiple gaskets and sealing components for a complete installation solution
- Supports proper sealing and cooling system integrity to help maintain consistent performance
- Built to meet or exceed original equipment specifications for dependable replacement quality
- Fits: 1987 & newer GM engines with standard cooling requiring a 160° thermostat
- Temperature rating: 160°F
- Premium quality for longer life
- Meets or exceeds manufacturer specs
- Backed by Sierra’s limited lifetime warranty
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