P640149 (Main Filter/Outer Filter): As the primary filtration unit, it typically adopts a honeycomb structure or PowerCore technology, aiming to provide efficient initial dust filtration.
P638095 (Safety Filter/Inner Filter): As the secondary protective barrier. Its main function is to prevent contaminants from entering the engine intake system during the failure or replacement of the main filter.
P638095 (Safety Filter/Inner Filter): As the secondary protective barrier. Its main function is to prevent contaminants from entering the engine intake system during the failure or replacement of the main filter.












