Maytronics - Dolphin Supreme M5 drive track grey - 9985006

Maytronics Dolphin Supreme M5 drive track grey

This is the genuine Maytronics grey timing drive track (part 9985006) for the Dolphin Supreme M5 robotic pool cleaner. The track loops around the guide wheels and drive pulleys to transfer torque from the motor to the chassis, propelling the robot across the pool floor and up the walls. Without a correctly tensioned, undamaged track, the drive system loses synchronisation and the cleaner stalls or drifts.

What this drive track does in the Dolphin

The timing track engages the teeth of the drive pulley and guide wheels in a fixed pitch, synchronising left and right side movement so the cleaner follows a controlled, overlapping cleaning pattern. When the track stretches, cracks, or loses teeth, the robot moves erratically, fails to climb walls, or stops propelling altogether. Replacing the worn track restores full traction and correct steering geometry immediately.

Which Dolphin models it fits

Part 9985006 fits a broad range of Dolphin chassis that share the same long-format track geometry. Confirmed compatible models include the Supreme M4, Supreme M5, Dynamic DX6, M400, M500, Nautilus CB, Triton CB, Triton Plus, Edge, Quest, Wave 90, Apollo Plus, and Spectra Light Premier. The Supreme M5 is the primary parent model for this SKU. Always verify your robot’s part number against the exploded diagram before ordering if you are unsure.

Signs it needs replacing

Look for visible cracking, missing drive teeth, or a track that slips off the guide wheels during operation. If the robot moves sluggishly on the pool floor, fails to climb walls it previously handled, or one side drives faster than the other, a stretched or damaged track is the most likely cause. Inspect both tracks at the same service interval — uneven wear on one side will accelerate wear on the opposite side.

How to install it

Remove the robot from the water and place it on a flat surface. Release the old track by sliding it off the rear guide wheel first, then work it free from the drive pulley and front wheel. Seat the new track onto the drive pulley teeth, route it around the guide wheels, and snap it into place — no tools required. Confirm the track sits flush and centred on all wheels before returning the robot to the pool.