Maytronics Dolphin Active Brush Gear Z12

The Maytronics 9983018 is the Z12 active brush gear for Dolphin robotic pool cleaners. It is the small 12 tooth gear that turns the active brush, and it is one of the wear items Maytronics sells separately.

When to replace it

If the active brush on your Dolphin has stopped turning or slips under load, a worn or stripped brush gear is a common cause.

Keep one on hand

It is an inexpensive part, so it is worth keeping a spare with the rest of your cleaner wear items.