The main function of the pilot filter in an excavator is to filter out contaminants that may enter valve components, absorb moisture, and work in conjunction with a separation filter to filter out any remaining trace amounts of moisture.

The installation purposes of the pilot filter include:

Filtering contaminants: The pilot filter can filter out contaminants that may enter valve components, with a filtration accuracy of 10-15μm. It should be able to withstand the working pressure and impact pressure in the valve circuit, with a pressure of less than 0.35MPa.

Absorbing moisture: The filter media used in the filter include fiberglass cotton, filter paper, knitted cotton sleeves, etc. These materials have the ability to absorb moisture, particularly fiberglass cotton can break oil droplets and separate water, while other materials absorb moisture, effectively filtering out moisture from the oil.

Working with a separation filter: If the filter cannot completely remove water from the oil, it will work in conjunction with a separation filter. This is a special filter material that allows oil to pass through but not water, effectively filtering out any remaining trace amounts of water.

The role of the pilot filter in excavators is crucial. When the pilot filter is clogged, it can lead to issues such as heavy control levers and slow vehicle speeds. Therefore, maintaining the cleanliness and proper functioning of the pilot filter is essential for the normal operation of the excavator.

Product NO.	Applicable models	Weight	Packaging unit
2474-9041S	DH150LC-7	0.32 KG	EA
2471-1154	DH130LC-V DH130W-V DH150LC-7 DH150W-7 DH150W-7S DH210W-7(S/N:20001~21000) DH210W-7(S/N:21001~) DH210W-7S DH215-7 DH215-9 DH215-9E DH220LC-3 DH220LC-7 DH220LC-9E DH220LC-V DH225LC-7 DH225LC-9 DH258LC-7 DH258LC-V DH280LC-3 DH300LC-7 DH300LC-V DH330LC-3 DH360LC-V DH370LC-7 DH370LC-9 DH420LC-7 DH500LC-7 DH80-7 DH80GOLD DH80GOLD(S/N:50001~) DX120 DX150-9C/DX150LC-9C/DX150LC-9CN DX150LC DX150LCS DX150W-9C/DX150W-9CN DX215-5B DX225CD-9C DX225LC DX230LC-SKD DX230LCS DX260LC DX300LC DX300LCS DX340LC-9C DX345LC DX350LC DX380LC DX420LC DX450LC-3B/DX450LC-9C DX490LC-9C/DX500LC-9C/DX520LC-9C DX500LC/DX500LCG DX60W(S/N:20001~21000) DX60W(S/N:21001~) DX60W(S/N:50001~) DX60W-9C(S/N:20001~21000) DX60W-9C/DX60W-9CN DX60WS DX700LC DX75 DX80 DX80(S/N:50001~) S150LC-7B S80GOLD S80GOLD(S/N:50001~) B55W-1 B55W-2 DX140 DX140A DX140LC DX140LC-3 / DX160LC-3 DX140LCR DX140LCR-3 DX140R DX140W / DX160W TIER-II DX140W / DX160W TIER-III DX140W ACE DX140W ACE PLUS(S/N:8141~) DX140W TIER-II DX140W TIER-III DX140W-3 / DX160W-3 DX140WA DX170W DX180LC DX180LC-3 DX190W DX190W-3 DX210 / DX225LCB DX210W DX210WA DX220A / DX225LCA DX220AF DX220LC DX220LC (TIER-3) DX220LCA DX225LC DX225LC (S/N 5433~) DX225LC-3 DX225NLC DX230LC DX235LCR DX255LC DX255LC-3 DX300LC DX300LC-3 DX300LC-3(S/N:1001~1511) DX300LC-5(S/N:1001~1057) DX300LCA DX340LC DX340LC-3 / DX350LC-3 DX340LC-5/DX350LC-5(S/N:10001~10049) DX340LCA DX350LC DX350LCA / DX360LCA DX380LC DX380LC-3 DX380LC-3(OCEANIA) DX380LCA DX420LC DX420LC-3 DX420LC-5(S/N:10001~10010) DX420LCA DX480LC DX480LCA / DX500LCA DX480LCA / DX500LCA / DX520LCA DX490LC-3 DX520LC DX520LC / DX520LCA DX520LCA DX530LC-3 DX53W DX55W DX55W ACE DX55W ACE PLUS(S/N:6025~) DX55WA DX700LC DX700LCA DX80R DX85R-3 E55W E80 E85 SOLAR 130-III SOLAR 130-V SOLAR 130LC-V SOLAR 130W-V(1) SOLAR 130W-V(2) SOLAR 140-V SOLAR 140LC-V SOLAR 140W-V SOLAR 160W-V SOLAR 170-III SOLAR 170LC-V SOLAR 170W-III SOLAR 170W-V SOLAR 175LC-V SOLAR 180W-V SOLAR 185W-V SOLAR 200W-V SOLAR 210W-V SOLAR 220LC-6 SOLAR 220LC-V SOLAR 220LC-V SOLAR 220N-V SOLAR 225LC-7A SOLAR 225LC-V SOLAR 225NLC-V SOLAR 230LC-V SOLAR 250LC-V SOLAR 255LC-V SOLAR 290LC-V SOLAR 300LC-7A SOLAR 300LC-V SOLAR 330-III SOLAR 330LC-V SOLAR 340LC-7 SOLAR 340LC-V SOLAR 360LC-V SOLAR 370LC-V SOLAR 400LC-V SOLAR 420LC-V SOLAR 450-III SOLAR 450LC-V SOLAR 470LC-V SOLAR 500LC-V SOLAR 55W-V SOLAR 55W-V GOLD PLUS SOLAR 55W-V PLUS SOLAR 55W-V SUPER SOLAR 70-III SOLAR 75-V SOLAR 80W-III TXC140-1 TXC140LC-2 TXC175-1 TXC180LC-2 TXC225-1 TXC225LC-2 TXC255-1 TXC255LC-2 TXC300-1 TXC300LC-2 TXC340-1 TXC340LC-2 TXC420-1 TXC420LC-2 TXC470-1 TXC480LC-2 TXC500-1 TXC520LC-2 DX140LC DX140LC-3 DX140W-3 / DX160W-3 DX140W/DX160W DX160LC DX160LC-3 DX160W RAIL WAY DX180LC DX180LC-3 DX225LC DX225LC-3 DX235NLC DX255LC DX255LC-3 DX300LC DX300LC-3 SOLAR 130LC-V SOLAR 140LC-V SOLAR 140W-V & S160W-V SOLAR 150LC-V SOLAR 155LC-V SOLAR 170LC-V SOLAR 175LC-V SOLAR 210W-V SOLAR 220LC-V SOLAR 225LC-V SOLAR 250LC-V SOLAR 255LC-V SOLAR 290LC-V SOLAR 75-V DX225LCA	0.05KG	EA
400504-00241	DH150W-7 DH210W-7(S/N:21001~) DH215-9E DH220LC-9E DH225LC-9 DH300LC-7 DX120 DX120-9C DX125W-10/DX125W-10N DX125W-9C/DX125W-9CN DX130-10/DX130-10N DX130-9C/DX130-9CN DX140AF/DX140LCA DX150-9C/DX150LC-9C/DX150LC-9CN DX150LC DX150LC-10/DX150LC-10N DX150W(S2) DX150W-10/DX150W-10N DX150W-7B DX150W-9C/DX150W-9CN DX150WE-10/DX150WE-10N DX150WE-9C/DX150WE-9CN DX190-3B/DX200-3B DX200-9C (CN)/DX200-9C (CN) ACE DX205-10/DX205-10N DX205-10A/DX205-10NA 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 DX220LCA-2 / DX220A-2 DX220LCA-2M / DX220A-2M DX225-10 DX225LC-10 DX225LC-9C DX230LC-9C DX245HD-10 DX245LC-9C ACE DX260LC DX260LC-9C DX270HD-10 DX270LC-9C ACE DX300LC DX300LC-7B DX300LC-9C DX305HD-10 DX305LC-9C ACE DX340LC-9C DX360LC-3B DX360LC-7B DX360LC-9C DX380-10 DX380-9C ACE DX380HD-10 DX380LC DX380LC-9C DX380LC-9C ACE DX400LC-7B DX420LC DX450LC-3B/DX450LC-9C DX490LC-9C/DX500LC-9C/DX520LC-9C DX500-9C ACE/DX500LC-9C ACE/DX560LC-9C ACE DX500HD-10/DX560HD-10 DX500LC-9C (S/N:22001~22044) DX500LC-9C ACE/DX560LC-9C ACE (S/N:30001~) DX500LC/DX500LCG DX55WE DX60W ECO-1/DX60WN ECO-1 DX60W ECO-2/DX60WN ECO-2 DX60W ECO/DX60WN ECO DX60W(S/N:20001~21000) DX60W-10/DX60W-10N DX60W-9C(S/N:20001~21000) DX60W-9C/DX60W-9CN DX680HD-10 DX700LC DX75 DX75-10/DX75-10N DX75-5B(S/N:20001~22711) DX75-5B(S/N:22712~) DX75-7B DX75-9C (S/N:20001~22711) DX75-9C ACE/DX75-9CN ACE DX75-9C PLUS/DX75-9CN PLUS(S/N:22712~) DX75E-10 DX75E-9C/DX75E-9CN DX80 DX88-9C (S/N:20001~20232) DX88-9C (S/N:20233~) DX100W-7 DX140A DX140LC DX140LC-3 / DX160LC-3 DX140LC-5 DX140LC-5 / DX160LC-5 DX140LC-5K(L) DX140LC-7 / DX160LC-7 DX140LC-7K / DX160LC-7K DX140LCR DX140LCR-3 DX140LCR-5 DX140LCR-5K(L) DX140LCR-7 DX140R DX140W / DX160W TIER-II DX140W / DX160W TIER-III DX140W ACE PLUS(S/N:8141~) DX140W-3 / DX160W-3 DX140W-5 DX140W-5 / DX160W-5 DX140W-5K(L)/DX160W-5K(L)(S/N:2485~) DX140W-7 / DX160W-7 DX150LC-7 DX150LC-7(S/N:2001~) DX150LCR-7 DX150W-7 / DX170W-7 DX165W-5 DX165WR-7 DX170LC-5 DX170LC-7 DX170W DX170W-5 DX170W-7 DX170WR-7 DX180LC DX180LC-3 DX180LC-5 DX190W DX190W-3 DX190W-5 DX190W-7 DX190WA(T-2) DX200A DX200A(S/N:1001~) DX200LC-7 DX210 / DX225LCB DX210-7 / DX210LC-7 / DX210NLC-7 DX210W DX210W-5 DX210W-5B DX210W-5K(L) DX210W-7 DX210WA DX210WA(T-2) DX220A / DX225LCA DX220AF DX220AF(S/N:1001~) DX220AF-7M DX220LC-5 DX220LC-5K(L) DX220LCA DX220W-7 DX225LC (S/N 5433~) DX225LC-3 DX225LC-5 DX225LC-7 DX225LC-7M / DX225-7M DX225LC-7X DX225LCA(S/N:1001~) DX225LCA-2 / DX200A-2 DX225LCA-7M / DX200A-7M DX225NLC DX225NLCA DX230LC DX235LC-5 DX235LC-7 / DX245NHD-7 DX235LCR DX235LCR-5 DX235LCR-5 DX235LCR-5K(L) DX235LCR-7 DX235NLC-5 DX240LC-7 DX240LC-7X DX240LCR-7 DX255LC DX255LC-3 DX255LC-5 DX255LC-7 DX260LCA DX300LC DX300LC-3 DX300LC-3(S/N:1001~1511) DX300LC-3(S/N:1512~) DX300LC-5 DX300LC-5(S/N:1001~1057) DX300LC-5(S/N:1058~) DX300LC-5(S/N:20001~) DX300LC-5K(L) DX300LC-7 DX300LC-7K DX300LC-7M / DX320LC-7M DX300LCA DX300LCA-7M DX300LCE DX320LC-7 DX340LC DX340LC-3 / DX350LC-3 DX340LC-5/DX350LC-5(S/N:10001~10049) DX340LC-5 / DX350LC-5(S/N:10050~) DX340LC-5 / DX350LC-5(S/N:20001~) DX340LCA DX340LCA-K/DX360LCA-K(S/N:20001~) DX350LC DX350LC-7 DX350LC-7K DX350LCA / DX360LCA DX350LCR-7 DX360LC-7M DX360LCA(S/N:5950~) DX360LCA-7M DX380LC DX380LC-3 DX380LC-3(OCEANIA) DX380LC-5 DX380LC-5 / DX400LC-5 DX380LC-5K(L) DX380LC-7 DX380LC-7K DX380LCA DX400LC-7 DX400LC-7M DX420LC DX420LC-3 DX420LC-5(S/N:10001~10010) DX420LC-5(S/N:10011~) DX420LC-7 DX420LC-7K DX420LCA DX420LCA-K(S/N:20001~) DX450LC-7M DX450LCA-7M DX480LC DX480LCA/DX500LCA DX480LCA/DX500LCA/DX520LCA DX480LCA-K/DX520LCA-K(S/N:20001~) DX490LC-3 DX490LC-5 / DX530LC-5 DX490LC-5(S/N:10001~10011) DX490LC-5(S/N:10012~) DX490LC-7 / DX530LC-7 DX490LC-7K / DX530LC-7K DX490LC-7M / DX530LC-7M DX490LCA-7M / DX530LCA-7M DX520LC / DX520LCA DX520LCA DX530LC-3 DX530LC-5(NT)(S/N:10001~10024) DX530LC-5(NT)(S/N:10025~) DX530LC-5(S/N:10001~10006) DX530LC-5(S/N:10001~10055) DX530LC-5(S/N:10007~) DX530LC-5(S/N:10056~) DX530LC-5B DX530LC-5K(L) DX53W DX550LC-7 DX55W DX55W ACE PLUS(S/N:6025~) DX55W-5 DX55W-5K(L)(S/N:1701~) DX57W-5 DX57W-7 DX650LC-7 DX65W-7 DX700LC DX700LCA DX80R DX85R-3 DX85R-7 DX85R-7 / DX89R-7 E100W E145 E145-7 E165 E55W E57W E57W-7 E80 E85 HW100A HX355ALCR SOLAR 180W-V SOLAR 185W-V SOLAR 210W-V SOLAR 225NLC-V SOLAR 255LC-V SOLAR 470LC-V SOLAR 500LC-V SOLAR 75-V	0.06KG	EA
400504-00329	DX1000HD-10 DX1000LC-9C DX800HD-10 DX800LC-9C DX1000LC-7 STAGE5/TIER4 DX1000LC-7 TIER3 DX800LC-5B DX800LC-7 HX1000AL HX1000L HX800AL HX800L	0.23KG	EA