Truck filter types and functions
1. Air filter
Used to filter the air entering the engine, effectively remove dust, sand and other impurities, protect the engine and improve combustion efficiency.
Replacement recommendation: every 10,000-20,000 kilometers, depending on the usage environment.
2. Oil Filter
Filters impurities and metal particles in the lubricating oil to ensure the cleanliness of the engine lubrication system and extend the service life of the engine.
Replacement suggestion: Replace at the same time as the engine oil, about every 5,000-10,000 kilometers.
3. Fuel Filter
Remove water and impurities from the fuel, protect the fuel injection system, and prevent clogging and wear. Diesel vehicles are generally equipped with a main oil filter and a pre-filter.
Replacement recommendation: every 10,000-20,000 kilometers.
4. Urea Filter
Used in the SCR emission treatment system to filter impurities in the urea liquid, avoid nozzle blockage, and ensure the normal operation of the exhaust purification system.
Scope of application: diesel vehicles with National IV emission standards and above.
Replacement recommendation: every 30,000-50,000 kilometers.
5. Cabin Air Filter
Filters dust and odor in the air entering the cab, improves air quality, and enhances driving comfort.
Replacement recommendation: Replace every 10,000-20,000 kilometers or once a year.
6. Hydraulic filter
Applicable to dump trucks, engineering vehicles and other vehicles with hydraulic systems, filtering impurities in the hydraulic oil to ensure the normal operation of the hydraulic system.
Replacement suggestion: Determine according to the frequency of use and working conditions of the equipment.
Comparison table of various filter element functions
| Filter Type | Main Function | Recommended Replacement Interval |
|---|---|---|
| Air Filter | Filters intake air, protects the engine | 10,000–20,000 km |
| Oil Filter | Cleans engine oil, reduces engine wear | 5,000–10,000 km |
| Fuel Filter | Protects injection system, prevents clogging | 10,000–20,000 km |
| Urea Filter | Ensures stable operation of emission system | 30,000–50,000 km |
| Cabin Air Filter | Improves air quality in the cabin | Annually or every 10,000–20,000 km |
| Hydraulic Filter | Protects the hydraulic system | Replace regularly based on usage |
Nanjing Dong Sun Tech Co.,Ltd. Specializes in manufacturing automotive components, such as air filters, AC filters, oil filters, gasoline filters, and other car part accessories. Committed to innovation and customer satisfaction, we deliver high-quality filtration solutions for vehicles.