Contaminants such as dust and fumes can affect the performance of locomotive or marine diesel engines. Improperly filtered intake air leads to premature wear on the engine, costly repairs, and unplanned downtime. AAF was the first to create an air filter specifically for the engine market. For over 45 years, the AmerKleen line of bag filters, pad filters, and housings have provided optimal protection of engines against contaminants in intake air and improved the performance of diesel engines in the locomotive and marine industries.