ACDelco GM Original Equipment GM Original Equipment Cabin Air Filters are designed, engineered, and tested to rigorous standards, and are backed by General Motors.Quality filtration media help remove some airborne particles before they reach the vehicle's ventilation system. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.