Thank you for your inquiry 8L2786. Please find Material and Brand information below: The 8L2786 Seal O-Ring we offer is from CTP, a U.S.-based Caterpillar aftermarket brand. It is manufactured to OEM specifications, with final quality control completed at ISO 9001-certified facilities in the United States to ensure proper fit and performance. Material: Rubber seal Warranty: 1 year (industry-leading) Returns: Hassle-free return policy Please let us know if you need any further assistance.