The Cat 3491079 is a genuine Caterpillar washer, an essential OEM component designed for secure fastening in a wide range of Cat heavy machinery. This washer ensures proper fit and reliable performance across diverse applications, including articulated trucks, asphalt pavers, cold planers, combines, compact track loaders, compact wheel loaders, dozers, and excavators. Its robust construction meets Caterpillar's stringent quality standards, providing durability and compatibility with specified Cat models.