Notes: 0.900.0504.5 EPIC.PLANETARY GEAR Z31 M3 L45.6 is original SAME-DEUTZ-FAHR product. 0.900.0504.5 EPIC.PLANETARY GEAR Z31 M3 L45.61 is commonly used in transmissions/axles/engines . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849