Maytronics Dolphin Impeller Motor – S Series, X Series & More (9991211-ASSY)

Maytronics Dolphin Impeller Motor – 9991211-ASSY

This is the genuine Maytronics Dolphin impeller motor assembly (9991211-ASSY), used in the motor block of compatible Dolphin robotic pool cleaners. The motor block contains two impeller motors — this listing is for one unit.

Important: We generally recommend replacing an impeller motor only when a drive motor failure has been confirmed using a Dolphin Analyser, and the motor is under 5 years old. If you are unsure, contact us before ordering.

Compatible Models

• Dolphin S Series
• Dolphin X Series
• Clarke
• Trident Eco, Ultra, Hydro
• Prowler 920
• K-Bot SX
• Aquawise AW4, AW5

Specifications

Frequently Asked Questions

What is the difference between an impeller motor and a drive motor?

The impeller motor powers the water pump inside the cleaner, creating suction to collect debris. The drive motor powers the tracks or wheels for movement. The motor block in these Dolphin models contains two impeller motors. A Dolphin Analyser is required to accurately diagnose which motor has failed before replacing.

How do I know if my impeller motor has failed?

Common signs include reduced suction, the cleaner not picking up debris, or error codes on the power supply. However, symptoms can overlap with other faults. We strongly recommend using a Dolphin Analyser to confirm a motor failure before purchasing a replacement.

Is this a genuine Maytronics part?

Yes — this is a genuine OEM Maytronics impeller motor assembly (9991211-ASSY), not an aftermarket substitute.

Do I need to replace both impeller motors at the same time?

Not necessarily, but if one motor has failed and the cleaner is older, it is worth considering replacing both to avoid a second repair shortly after. Contact us for advice specific to your situation.