This is a genuine Mercedes-Benz OEM sealing ring, part number 0239974547, engineered for critical sealing applications in various Mercedes-Benz vehicles and industrial equipment. Precision-manufactured to Mercedes-Benz's exacting standards, this sealing ring features an inner diameter of 15 mm, an outer diameter of 20 mm, and a thickness of 2.5 mm. It ensures a reliable, leak-proof seal, contributing to the optimal performance and longevity of components where it is installed. Its robust construction guarantees durability and effective prevention of leaks.