This Maytronics Dolphin™ 9985066 Adapter Sleeve for Wheel Bearing is a reliable replacement part, designed to seamlessly intergrate with the original pool cleaning system. The adapter sleeve securely holds the wheel bearing in place. Maytronics pool cleaners help keep your pool healthy and clean, which is of the utmost importance. Ensure that your pool cleaner is running as cleanly as possible with this certified genuine part.