Genuine OEM Nissan Seal-O Ring, part number 210493RC0A. This O-ring is designed to create a tight seal between mating components, commonly used in engine assemblies such as water valves to prevent leaks. Its specific dimensions and material are crucial for maintaining fluid integrity. Manufactured with high-quality rubber to resist heat and chemicals. Genuine OEM parts ensure the correct elasticity and durability required for a long-lasting, leak-free seal.