Fluid Control Thermostat Kit 3/8in NPT

The DERALE Fluid Control Thermostat Kit 3/8in NPT is designed for performance-minded mechanics and engine builders who require precise temperature management in their cooling systems. This kit is essential for maintaining optimal coolant temperatures in street machines, track cars, or custom engine builds, preventing overheating and excessive cold-start losses.

This remote thermostat assembly features 3/8-inch NPT threaded ports that are compatible with standard hose barbs and fittings commonly found in aftermarket cooling systems. Its design allows for inline installation within coolant circuits, positioned between the water pump discharge and radiator inlet, or in custom loop configurations. The internal bypass and spring-loaded gate mechanism ensure consistent coolant flow as temperatures rise, protecting against thermal shock and overcooling.

Ideal for builders working with custom radiators, electric water pump conversions, or unique engine bays, this thermostat kit provides full control over thermal behavior independent of OEM constraints. It is particularly beneficial for those looking to enhance the performance and reliability of their cooling systems in various automotive applications.