OEM HITACHI EX100 120-5 THERMOSTAT HOUSING (OEM IS 8943104913) | Tonkee®

The thermostat housing is a durable and heat-resistant component typically made of cast iron or aluminum.

It houses the thermostat, which is a valve-like device that controls the flow of coolant through the engine. The thermostat housing is strategically positioned in the engine's cooling system, usually connected to the engine block and the radiator.

One of the primary functions of the thermostat housing is to encase and protect the thermostat. The thermostat itself is a temperature-sensitive valve that opens and closes based on the engine's temperature. When the engine is cold, the thermostat remains closed, preventing the flow of coolant to the radiator. This allows the engine to heat up quickly and reach its optimal operating temperature.

As the engine warms up, the thermostat gradually opens, allowing coolant to flow through the radiator and cool down. The thermostat housing ensures that this process happens smoothly and that the coolant flows in and out of the engine at the right times and temperatures. This regulation is crucial for preventing overheating, which can lead to engine damage and reduced efficiency.

The Hitachi EX100-5 and EX120-5 excavators are heavy-duty machines designed for demanding construction and excavation tasks.

These machines rely on powerful engines to operate efficiently, and maintaining the correct operating temperature is essential for their performance and longevity. The thermostat housing, with its precision engineering and durable materials, helps achieve this by ensuring that the engine operates within its ideal temperature range.

In addition to its temperature regulation function, the thermostat housing also serves as a connection point for various components of the cooling system. It typically has inlet and outlet ports for coolant hoses, allowing the coolant to circulate through the system. These connections must be secure and leak-free to maintain the cooling system's integrity.

Furthermore, the thermostat housing is designed to withstand the high temperatures and pressures that are present in the engine's cooling system. It must be built to last and resist corrosion to ensure long-term reliability.

Regular maintenance of the thermostat housing and the entire cooling system is essential to keep the Hitachi EX100-5 and EX120-5 excavators operating at their best. This includes inspecting the housing for signs of damage or wear, checking the thermostat's functionality, and ensuring that coolant levels are adequate.

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