CF1398 MANN Filter Secondary Air Filter

This MANN Filter secondary air filter, part number CF1398, is an essential component for maintaining optimal engine health. It is installed in the vehicle’s air intake system to remove contaminants. By providing clean air, this filter helps maximize fuel efficiency and reduce emissions. Manufactured in Germany, it has dimensions of 335 x 145 x 145 mm. Dimensions are provided by the supplier and may include packaging dimensions. Air filters are critical engine components situated between the air intake and throttle body, preventing abrasive particulate matter from entering the engine. Constructed typically of pleated cellulose or synthetic media, they provide a large surface area for maximizing airflow while trapping contaminants as small as 5 microns. Filter efficiency is rated by percentage of particle capture, influencing engine performance and longevity. Variations include paper, cotton gauze, and non-woven synthetic materials, each offering differing airflow and filtration balances. Proper sealing via gasket or mounting interface is essential to prevent unfiltered air bypass.