The code 97133-3SAA0 refers to a genuine OEM Cabin Air Filter used in various Hyundai, Kia, Chevrolet, and GMC vehicles, notably models like Hyundai Santa Fe (2013-2018), Sonata (2011-2014), Equinox (2010-2017), and Kia Sedona (2011-2021). It's a synthetic fiber filter, often with activated carbon, designed to clean the air entering the car's cabin, with interchangeable part numbers like CF11819 or CP819.