Polaris Vac-Sweep 380 / 360 and "Trade Grade" TR35P / TR36P Pressure Cleaner Belt Divider, Transfer Pulley (9-100-1010)
The belt divider, transfer pulley is a replacement part manufactured by Polaris. It is made from the same high-grade materials used for the original factory part. Making this a genuine OEM product.
This belt divider was designed for one singular purpose and that purpose is to keep the belts (small and large) from contacting each other while the trans pulley rotates. This receives its power from the drive train gear kit which then sends this power to the wheel assemblies. This gives the cleaner the ability to move along the entirety of your pool's surface to suck and pull up dirt and other forms of debris.
This part is white and can be found between the open-ended teeth that are at the end of the trans pulley where it divides the two belts. It makes it easy to locate for extraction if needing to be replaced. Great troubleshooting tip if your cleaner is having trouble moving, would be to check the belts. They can deteriorate or wear over time and use of their teeth.