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CST Thermostats

Original Equipment Replacement Thermostats
CST offers a full line of thermostats to replace your original equipment thermostat. This includes a wide variety of temperature ranges all designed to operate with OEM requirements.

UltraStat Thermostats
CST UltraStat thermostats are made of stainless steel and have enlarged openings to provide increased flow.

Failsafe Thermostats
The Failsafe Thermostat is a revolutionary thermostat that helps protect your automobile when overheating occurs.


  • CST thermostats are manufactured in an ISO 9002 Certified Facility.


  • CST thermostats are designed for precise engine operating temperatures.


  • CST is the only thermostat manufacturer that produces "High Flow" thermostats for today's higher performance engines.