Thermostat 195 Degree

The STEWART Thermostat 195 Degree is a precision engine cooling control component designed for drivers and mechanics who demand reliable temperature management in their vehicles. This thermostat opens at 195 degrees Fahrenheit, making it suitable for engines that benefit from enhanced thermal regulation. Whether you're maintaining a classic vehicle or upgrading cooling system performance, this compact unit delivers the thermal accuracy necessary for optimal engine health.

This STEWART thermostat functions by regulating coolant flow based on engine temperature, preventing overcooling during startup and maintaining steady operating temperatures under load. The 195-degree opening point is positioned between stock specifications (typically 180–195 degrees) and higher-flow aftermarket alternatives, providing a balanced approach to cooling system tuning. Its compact design—measuring just 2.15 x 2.05 x 3.2 inches and weighing 0.18 lbs—ensures easy installation in tight engine bays without sacrificing durability or thermal response accuracy.

Mechanics and enthusiasts upgrading cooling systems for turbo applications, track use, or performance builds will find this thermostat particularly beneficial. Its precise thermal window helps optimize engine performance under demanding conditions. This thermostat is a reliable choice for those looking to enhance their engine's cooling efficiency.