The main function of the excavator cylinder head gasket is to ensure the sealing between the cylinder head and the cylinder block, preventing air, oil, and coolant leaks.

The cylinder head gasket is an elastic sealing element installed between the cylinder block and the cylinder head. Its primary purpose is to fill the microscopic gaps between the cylinder block and the cylinder head, ensuring a good seal at the joint surface. This is essential for maintaining a sealed combustion chamber, preventing air leakage from the cylinder and water leakage from the water jacket, while also ensuring that coolant and engine oil flowing to the cylinder head do not leak. In heavy machinery like excavators, this sealing capability is crucial for ensuring normal operation and extending the lifespan of the machine.

There are various types of cylinder head gaskets, including metal-asbestos gaskets, which have asbestos as the base material and are wrapped in copper or steel, as well as metal-rubber gaskets made from materials like fluororubber and silicone rubber. These materials are designed to meet the demands of operating in high-temperature, high-pressure, high-pulse rate, and high-power environments typical of excavators.

Choosing and using the gasket correctly is vital for preventing issues such as oil leaks and coolant boiling. Even though gaskets may seem inconspicuous among the many components of an excavator, they play an indispensable role in the machine’s overall functionality and reliability.

Product NO.	Applicable models	Weight	Packaging unit
400603-00071	DH150LC-7 DH150W-7 DH210W-7(S/N:20001~21000) DX140AF/DX140LCA DX150LC DX220LCA-2 / DX220A-2 DX220LCA-2M / DX220A-2M DX140W / DX160W TIER-II DX190WA(T-2) DX200A DX200A(S/N:1001~) DX210WA(T-2) DX220A / DX225LCA DX220AF DX220AF(S/N:1001~) DX220AF-7M DX225LCA(S/N:1001~) DX225LCA-2 / DX200A-2 DX225LCA-7M / DX200A-7M DX225NLCA SOLAR 180W-V SOLAR 185W-V SOLAR 210W-V SOLAR 225NLC-V SOLAR 255LC-V	0.75 KG	EA
400603-00119	DX260LCA DX300LCA DX300LCA-7M	0.25 KG	EA
400603-00079	DH60-7 DX55-5B DX55-5C DX55-9C(CN) ACE DX55-9C(CN)/DX60E-9C(CN)/DX60E-9C ACE DX60 DX60 (S/N:50001~) DX60 ACE-10/DX60 ACE-10N DX60E-10/DX60E-10N(S/N:20001~) DX60S DX60W ECO-1/DX60WN ECO-1 DX75 DX75-10/DX75-10N E58 DX62R-3 DX63-3 E62	0.2 KG	EA
400603-00118	DX150-9C/DX150LC-9C/DX150LC-9CN DX150W-10/DX150W-10N DX150W-7B DX150W-9C/DX150W-9CN DX210-7M DX210W-10/DX210W-10N DX210W-7B DX210W-9C (S/N:30001~) DX210W-9C/DX210W-9CN DX215-10/DX215-10N DX215-5B DX215-9C ACE/DX215-9CN ACE DX215-9C/DX215-9CN DX220LC-7M DX220LC-9C DX220LC-9C ACE DX225-10 DX225LC-10 DX225LC-9C DX230LC-9C DX245HD-10 DX245LC-9C ACE DX260LC-9C DX270HD-10 DX270LC-9C ACE DX140W-7 / DX160W-7 DX150W-7 / DX170W-7 DX170W-7 DX190W-7 DX210-7 / DX210LC-7 / DX210NLC-7 DX210W-7 DX220W-7 DX225LC-7 DX225LC-7M / DX225-7M DX225LC-7X DX235LC-7 / DX245NHD-7 DX235LCR-7 DX240LC-7 DX240LC-7X DX240LCR-7 DX255LC-7	0.75 KG	EA
400603-00116	DX360LC-7B DX380-10 DX380-9C ACE DX380HD-10 DX380LC-9C ACE DX400LC-7B DX500-9C ACE/DX500LC-9C ACE/DX560LC-9C ACE DX500HD-10/DX560HD-10 DX500LC-9C ACE/DX560LC-9C ACE (S/N:30001~) DX680HD-10 DX380LC-7 DX380LC-7K DX400LC-7 DX400LC-7M DX420LC-7 DX420LC-7K DX450LC-7M DX490LC-7 / DX530LC-7 DX490LC-7K / DX530LC-7K DX490LC-7M / DX530LC-7M DX550LC-7 DX650LC-7	0.158 KG	EA
400603-00111B	DX380LC after DX420LC after DX500LC after
400603-00110B	DX380LC front DX420LC front DX500LC front
400603-00079	DH60-7 DX55-5B DX55-5C DX55-9C(CN) ACE DX55-9C(CN)/DX60E-9C(CN)/DX60E-9C ACE DX60 DX60 (S/N:50001~) DX60 ACE-10/DX60 ACE-10N DX60E-10/DX60E-10N(S/N:20001~) DX60S DX60W ECO-1/DX60WN ECO-1 DX75 DX75-10/DX75-10N E58 DX62R-3 DX63-3 E62	0.2 KG	EA