Thermostat 195 Degree

The STEWART Thermostat 195 Degree is a precision engine cooling control valve engineered for universal automotive and small engine applications. This component regulates coolant flow based on engine temperature, ensuring optimal operating conditions across varying climates and driving conditions. Whether you're restoring a classic vehicle, maintaining marine equipment, or servicing industrial machinery, the 195-degree opening temperature makes this thermostat ideal for engines requiring efficient thermal management in moderate to warm ambient environments.

Constructed from brass and copper materials, this 2-1/8 inch OD thermostat delivers reliable heat dissipation and corrosion resistance in demanding cooling systems. The 195-degree rating means the valve begins opening at that temperature threshold, allowing coolant to circulate through the radiator when the engine reaches this precise point, preventing overheating while minimizing warm-up time. The compact, lightweight design at 0.18 lbs fits seamlessly into standard engine blocks without requiring custom installation modifications, making it a direct replacement solution for countless applications.

Technicians and enthusiasts benefit most from this universal thermostat when diagnosing cooling system failures or upgrading temperature control on vehicles originally equipped with higher-opening thresholds. Installation is straightforward in most housings—simply remove the old unit and seat the new thermostat with its jiggle pin oriented correctly to prevent vapor lock. Compatible with both petcock and bypass-style cooling systems, this STEWART component is an economical way to restore proper engine temperature regulation and improve long-term reliability.