Breville Main / Drive Gear Genuine OEM part in sealed packaging. Compatible with all Breville / Sage Grinders and Espresso Machines including Smart Grinder Pro series BCG800XL (replaces part BCG800XL130), BCG820 (SP0013189 and SP0010092), Dose Control Pro series BCG600SIL, BCG400SIL, and the grinder portions of Barista Express/Pro/Touch/Oracle series. Commonly worn out item when jammed that will cause a constant noise when running and prevent the grinder from working. Recommend replacing grinder impeller at the same time during repair. No repair instructions provided.