Butée de protection du couvercle de la roue Maytronics Dolphin DB - 9980221

Maytronics Dolphin butoir de couvercle de turbine DB

The Maytronics Dolphin impeller cover bumper DB (9980221) is the outermost protective shell that shields the impeller assembly on Dolphin robotic pool cleaners built around the Diagnostic Basic (DB) motor platform. It sits at the front of the motor unit, absorbing impacts against pool walls and floor while preventing large debris from reaching the impeller blades. This is a direct factory-original replacement supplied by Maytronics.

Fonctionnalité et design

The bumper cover serves a dual purpose: it acts as a physical barrier that deflects the robot away from hard surfaces during a cleaning cycle, and it forms a precise aerodynamic shroud that channels water flow efficiently into the impeller. Without an intact cover, hydraulic efficiency drops, suction pressure falls, and the impeller itself becomes vulnerable to direct contact with grit, pebbles and leaf stems that would otherwise cause blade damage or motor overload.

Modèles Dolphin compatibles

This part is designed for Dolphin robotic cleaners built on the DB (Diagnostic Basic) motor platform, including the M200 CLI, DX3, DX3S, Neptune, Supreme M3, Advantage Plus and Primal X3. Always verify your robot’s motor unit designation before ordering — the DB platform bumper is not interchangeable with covers designed for the CL or higher-spec motor units.

Symptômes indiquant la nécessité d'un remplacement

Replace this bumper if you notice visible cracks, chips or missing sections on the front impeller shroud; if the robot produces an unusual rattling noise at the motor end during operation; or if suction noticeably weakens despite a clean filter cartridge. A damaged cover can allow debris ingestion that will cause progressive wear to the impeller blades and, ultimately, motor unit failure.

Pourquoi il est important d'opter pour des produits Maytronics d'origine

Maytronics engineers the impeller cover bumper to exact dimensional tolerances so that the water intake geometry matches the motor unit’s designed flow rate. Aftermarket copies frequently exhibit slightly incorrect inlet geometries or inferior polymer grades that crack under repeated thermal cycling. A genuine part guarantees the hydraulic seal, maintains warranty eligibility and ensures the bumper locks correctly onto the DB chassis without stress fractures at the mounting tabs.