Genuine OEM Nissan Seal-O Ring, part number 22131ED000. This O-ring is designed to seal the camshaft sensor, preventing oil or other fluids from leaking into the sensor housing or the engine. Its precise dimensions and material are critical for maintaining a reliable seal in the engine environment. Manufactured with high-quality rubber to resist heat and engine oil. Genuine OEM parts ensure the correct elasticity and durability required for a long-lasting, leak-free seal around sensitive engine sensors.