Notes: 0.900.0688.0 Bevel gear/Pinion set 12/33 is original SAME-DEUTZ-FAHR product. 0.900.0688.0 Bevel gear/Pinion set 12/331 is commonly used in transmissions/axles/engines . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849