This genuine Mercedes-Benz fuel tank cap, part number 0004700305, is designed for MB Trac agricultural tractors and Unimog vehicles. Constructed from durable black plastic, it features an outer diameter of 80 mm, an inner diameter of 60 mm, and a height of 40 mm. The cap includes integrated ventilation and a securing chain, ensuring proper fuel system function and preventing loss. It does not require a key for operation. This OEM part guarantees reliable fitment and performance for compatible models.