This is an OEM Genuine Caterpillar Cup with part number 1B-4038 or 1B4038. It is compatible with Caterpillar equipment and is made in the United States. This heavy-duty gasket is perfect for heavy equipment parts and attachments. Made with quality materials, this Caterpillar Cup ensures durability and longevity. It is an essential component for Caterpillar equipment maintenance and repair. Purchase with confidence knowing you are getting a genuine Caterpillar product.