The CAT 135-5787 Engine Air Filter is a high-quality air filter specifically designed for Caterpillar equipment. Made by the reputable brand CAT in the United States, this filter is a reliable and durable component for heavy equipment maintenance. The part type is a crucial air filter, ensuring that it provides optimal filtration for the Caterpillar engines it is designed to serve. This New Old Stock (NOS) filter is a valuable resource for businesses and industrial operations needing to replace or upgrade their equipment filters.