1660655SM, 1716127SM, 1686821SM SIMPLICITY AUGER GEARBOX. THIS IS A USED OEM PART. If you have any questions about this item, please feel free to sent a message, I will do my best to assist. Please confirm this is the correct part for your equipment, by using a oem parts diagram. If you need assistance let me know I will do my best to help. I would need the full model and serial number, and also the spec, code or type number for engines. I try to respond to all messages, if I miss your message please sent a follow up message.

This is a set of used auger gear cases from a Simplicity 755 snowblower, in great condition. Cases have 3/4 bushings and seals. These are the same cases used on the larger 560, 760, 860 etc machines. You would need to remove the current bushings/seals and install 1 seals. To use in this application.