The Claas 0001404781 is a genuine OEM water tank cap designed for a wide range of Claas combine harvesters. This essential component ensures a secure seal for the water tank, preventing leaks and contamination. It is compatible with Avero, Commandor, Dominator, Lexion, Medion, Mega, Tucano, and Crop Tiger series combine models, offering reliable performance and a precise fit for maintaining your agricultural machinery.