The main function of the excavator thermostat is to control the flow path of the coolant, by automatically adjusting the amount of water entering the radiator to change the circulation range of the water, thereby regulating the cooling system’s heat dissipation capacity and ensuring that the engine operates within the appropriate temperature range.

The excavator thermostat, also known as a temperature regulator or thermostat, is an automatic temperature control device that typically contains temperature sensing components. These temperature sensing components open or close the flow of air, gas, or liquid through expansion or contraction. Specifically, the thermostat automatically adjusts the amount of water entering the radiator based on the coolant temperature, which helps change the circulation range of the water and adjust the cooling system’s heat dissipation capacity. This mechanism ensures that the engine operates within the ideal temperature range, protecting it from overheating or other damage. Therefore, the thermostat must be maintained in good technical condition, as any issues can seriously affect the normal operation of the engine.

Product NO.	Applicable models	Weight	Packaging unit
300738-00084	DH150LC-7 DH150W-7 DH210W-7(S/N:20001~21000) DH210W-7S DX140AF/DX140LCA DX150-9C/DX150LC-9C/DX150LC-9CN DX150LC DX150W-7B DX150W-9C/DX150W-9CN DX215-5B DX215-9C/DX215-9CN DX220LC-9C DX220LCA-2/DX220A-2 DX220LCA-2M/DX220A-2M DX225CD-9C DX225LC-9C DX230LC-9C DX260LC-9C DX140 DX140A DX140LC DX140W/DX160W TIER-III DX140W ACE DX140W ACE PLUS(S/N:8141~) DX140W TIER-III DX140WA DX170W DX180LC DX190W DX190WA(T-2) DX200A DX210W DX210WA DX210WA(T-2) DX220LC (TIER-3) DX220LCA DX225LC DX225LC (S/N 5433~) DX225LCA-2 / DX200A-2 DX225LCA-7M / DX200A-7M DX225NLC DX230LC DX255LC DX160W RAIL WAY DX235NLC	0.2 KG	EA
300738-00085	DH215-9E DH220LC-9E DH225LC-9 DH300LC-7 DX260LC DX300LC DX260LCA DX300LCA DX300LCA-7M	0.5 KG	EA
65.06402-0006	DH370LC-7 DH370LC-9 DH420LC-7 DH500LC-7 DX300LC-7B DX300LC-9C DX300LCS DX305LC-9C ACE DX340LC-9C DX345LC DX350LC DX380LC DX420LC DX500LC/DX500LCG DX300LC DX300LC-3 DX300LC-3(S/N:1001~1511) DX300LC-3(S/N:1512~) DX300LC-7M / DX320LC-7M DX300LCA DX340LC DX340LC-3 / DX350LC-3 DX340LCA DX350LC DX350LCA/DX360LCA DX360LC-7M DX360LCA(S/N:5950~) DX380LC DX380LC-3 DX380LC-3(OCEANIA) DX380LCA DX420LC DX420LCA DX480LC DX480LCA/DX500LCA DX480LCA/DX500LCA/DX520LCA DX520LC DX520LC / DX520LCA DX520LCA SOLAR 340LC-7 SOLAR 340LC-V SOLAR 370LC-V SOLAR 420LC-V SOLAR 470LC-V SOLAR 500LC-V TXC300LC-2 TXC340LC-2 TXC420LC-2 TXC480LC-2 TXC520LC-2 DX300LC-3	0.118 KG	EA