This is a genuine OEM O-ring, part number 090123510, manufactured by SAME Deutz-Fahr (SDF Group). It features an inner diameter of 120 mm, an outer diameter of 126 mm, and a thickness of 3 mm. This O-ring is designed for various agricultural and industrial machinery models from SAME, Deutz-Fahr, Lamborghini, and Hürlimann, ensuring a precise fit and reliable seal. It directly replaces the older part number 0.9012.351.0/10.