83 degree high flow thermostat for lower cooling water temperature / engine temperature for Hummer H3 5.3

The job of a standard thermostat is to regulate the temperature of the engine and maintain it within its ideal operating range to ensure the best performance and durability.

When the engine is cold, the wax inside the thermostat solidifies and the thermostat remains closed, preventing coolant from flowing through the engine. As the engine heats up, the wax begins to melt and expand, opening the thermostat valve and allowing coolant to flow through the engine. Once the engine has reached its optimal operating temperature, the wax in the thermostat has fully expanded and the valve remains open to maintain the desired temperature.

The wax thermostat is an efficient method of regulating engine temperature because it responds quickly to temperature changes and can adjust coolant flow accordingly. It is also durable and relatively low maintenance, making it a popular choice for automotive applications.

Delivery includes:

– 83 degree thermostat for Hummer H3 5.3
– Seal

Attention: since the gasket is included in the scope of delivery, you do not need to order the thermostat housing gasket separately!