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Filter PL420 can't replace filters PL421

Filter PL420 can't replace filters PL421

In the past, the PL420 was used as the first primary filter for the fuel tank girders. There is no pressure. The common rail is pressurized, and the PL420 is under negative pressure. Before the appearance of the electronic pressure pump, the transparent cup is very safe, there is no pressure damage to the transparent cup, but with the advent of the electronic pressure pump, the engine's two coarse filters change from negative pressure to 4 positive pressures or even greater pressure. The old-fashioned PL420 transparent cup has the risk of oil leakage. Some OEMs changed the PL420 on the engine to the PL421 without a cup. However, some OEMs did not consider this problem. They still loaded the PL420. (There are now Delong) there are design risks. It is recommended to use the filter PL421 for models equipped with an electronic pump. Filters PL420 and PL421, we can provide, if you need, please feel free to contact us.

CHINA EVERLASTING PARTS CO., LIMITED is most complete range of Filters Professional Supplier.


Our Filters are used for the famouse equipment Example: Caterpillar,Komatsu,Fleetguard,Perkins,Lister Petter,FG Wilson,Deutz,VOLVO,Hitachi,JCB,Hyundai,Deawoo Doosan,Mitsubishi,John Deere,Parker Racor,Atlas Copco,Ingersoll Rand,Hydac,Pall,Kobelco,Rexreoth,Mercedes Benz,IVECO,Scania,MTU,DAF,Hengst,Hino,Mann,CNH,Yanmar,Toyor,Nissan,Luber Finer,Wix,Donaldson,Baldwin,Also Welcome Samples to produce according to your samples.


Our Filters are used on Truck,Bus,Excavator,Crane,Bulldozer,Harvester,Forklift,Coach,Pump Truck,Loaders,generator set,Steamship,Air Compressor,Track Type Tractors,WHEEL LOADERS

TRACK EXCAVATORS,ARTICULATED TRUCKS,AG TRACTORS,COMPACTORS,PIPELAYERS,HIGHWAY TRUCKS,WHEEL DOZERS.


We have our own Filters factory and Our Own Brand AYREST,with 10 Years Filters Produce Experience. Meanwhile have build Good Cooperation relation with more than 20 Professional Manufactures, that can ensure supply steady quality filters to Customers.


We are filtration specialists and have mastered the techniques of separation and filtration processes. We own Complete testing equipment ensure supply acceptable quality filters to users.


Our Filters Technology, Material and Quality Refer to the original standard. Example: Our CAT Filters Replacement with Technology is "Non-Metallic Center Tube;Spiral Roving;Molded End Caps"


EVERLASTING PARTS COMPANY is at your disposal throughout the year, in order to help you make the best choice in filtration for your equipment.


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