Unlike conventional thermostats that continually open and close to achieve the proper operating temperature and flood the engine with coolant, the Stant SuperStat® thermostat has a patented v-notch, non-linear design that reduces cycling by precisely metering the amount of coolant needed to maintain proper operating temperature. The v-notch provides a small inital flow. As the engine heats up, the v-notch gradually opens wider, metering coolant into the system until the desired engine temperature is reached.

The high strength stainless steel flange is burnished to a bright finish for additional stress relief and added corrosion resistance.

Superstat premium thermostats have:

• Heavier frames and springs
• Larger heat motors
• Patented Weir valves

The unique Weir valve provides a higher flow of coolant to the radiator than any other thermostat on the market.

• The early flow of coolant minimizes the “cycling” of temperature allowing the engine to run a steady temperature, resulting in higher efficiency.