K2841 air filter element is a dual-stage primary and safety filter set for the engine air intake system of Sinotruk heavy-duty trucks. It adopts high-quality pleated filter paper with high dust holding capacity, paired with sturdy spiral metal protective net and elastic rubber sealing ring. This air filter can efficiently block dust, sand, debris and other particulate pollutants in the air, preventing abrasive particles from entering the cylinder and turbocharger, reducing engine wear. It is widely used in long-distance transportation, mining, construction sites and other high-dust working conditions. Each filter element passes strict dust holding, air flow and leak tightness inspection before delivery. The dual filter design can still provide effective protection even if the outer main filter is damaged. It is supplied as a complete set for direct replacement. We maintain sufficient inventory and stable bulk supply for repair workshops, fleet operators, auto parts dealers and global cross-border export customers.