This is a genuine VAG O-ring, part number 1H0121687A, designed to provide a reliable and durable seal. Engineered to meet VAG's stringent quality standards, this O-ring is crucial for maintaining the integrity of fluid or air systems within your vehicle. Its precise dimensions and material composition ensure a perfect fit and long-lasting performance, preventing leaks and maintaining optimal system pressure. Whether for routine maintenance or repair, this VAG O-ring is a dependable choice for ensuring your vehicle's components function as intended. Proper sealing is vital for the efficient operation of many automotive systems, including cooling, fuel, and lubrication. Using genuine VAG parts like this O-ring guarantees compatibility and performance, giving you peace of mind. Trust in the quality and reliability of VAG parts for your vehicle. This O-ring is manufactured to the highest standards to ensure it meets the demands of modern automotive engineering.