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The MAYTRONICS 9983123 is an OEM-style active brush gear designed as a direct replacement component for Dolphin robotic pool cleaners. This gear drives the brush assembly, transferring motor torque to the scrubbing brushes that agitate and loosen debris from pool surfaces. It is a wear item that pool service technicians and knowledgeable owners replace during routine maintenance or when brush rotation becomes sluggish or stops entirely. At 0.05 pounds, the part is compact and lightweight, making it straightforward to stock and swap during a service call.
This brush gear is used in Dolphin robotic automatic pool cleaners across a wide range of residential models. It fits units deployed in standard in-ground and above-ground pool environments where the robotic cleaner handles floor, wall, and waterline scrubbing. When brush performance degrades and the drive train is confirmed as the cause, replacing this gear restores proper brush engagement and cleaning efficiency.
Compatible with the following Dolphin robotic pool cleaner models: Active 10, Active 20, Active 30/30i, Cayman, Echo, Discovery, Premium Energy, Saturn, Quantum, E10, Escape, Nautilus CC, Encore, Triton PS, Triton PS Plus, T15, T35, T45, T55i, Proteus DX3/DX4/DX5i, Mercury, Advantage, Advantage Ultra, Premium, and Explorer E30.
Installation is typically performed by a pool service technician or experienced owner familiar with robotic cleaner disassembly. Before servicing, remove the cleaner from the pool and disconnect it from its power supply unit. Consult the model-specific service manual for gear access and seating procedures. Avoid forcing the gear into position, as improper seating can damage the brush drive train.
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