IMPELLER MOTOR PUMP RERAIR KIT BEARING BRUSHES SEAL Fits Maytronics Dolphin 
Purchased this kit to repair old robotic pool vacuum but ended buying a whole new vacuum and no longer need this.
$100 1YW Rebuilt Maytronics Dolphin Impeller Motor 5500026 52zy98 With O-rings
This is for a impeller motor with all the O-rings that you will need whenever you replace it includes a bag of desiccant and a little packet of Bot lube comes with a one-year warranty. There is a core on it when you get the motor you will install your new motor and put your old motor in the box and send it back in. It will be tested and your money will be refunded. Make sure you check your outputs on your robot if possible comes with a one-year warranty.