Polaris Zodiac 3900 Wheel Sprocket Assembly with Bearing (39-420) filburmfg When the seat still works

When the seat still works but no longer looks as fresh or upscale as it once did

5-1/4 inch height

precise scheduling control than many purely mechanical alternatives

OEM Pentair/Sta-Rite inlet floor plate

Polaris Zodiac 3900 Wheel Sprocket Assembly with Bearing (39-420) filburmfg When the seat still worksThe wheel sprocket assembly with bearing is part of the Polaris 3900 drive system that helps transfer motion to the cleaner wheels. If the cleaner is slipping, binding, or failing to drive correctly, worn sprocket or bearing components may be involved. This replacement assembly helps restore the mechanical connection needed for smooth wheel operation. It is a valuable part for deeper 3900 cleaner repairs where traction and drive performance need to be