The CUMMINS 20.16" x 13.98" OD air oil separator effectively removes oil mist, thereby enhancing engine performance and longevity. It is designed to improve air quality by separating oil particles, ensuring cleaner air flows through the system, which in turn minimizes engine wear. Additionally, it maintains optimal pressure levels within the system. By reducing oil mist, it helps in maintaining optimal engine temperature. This air oil separator is specifically engineered to support the essential functions necessary for maintaining excellent engine conditions.