A heavy-duty washer helps distribute load and support secure assembly in a compatible robotic cleaner, and this Maytronics Dolphin version uses the 9981242 reference. Small hardware components like washers are easy to overlook, but they often play an important role in keeping structural and movement-related assemblies fitted correctly.This part has practical value because a heavy-duty washer is intended for more demanding support than a lighter general-purpose washer. A properly selected Maytronics replacement helps maintain original hardware fit and contributes to a more complete, more dependable repair.This type of part is especially useful during rebuild or reassembly work when original hardware is damaged, missing, or no longer suitable for reuse. That helps keep the service work precise and properly matched to the cleaner platform.Installed in the proper application, this washer helps support cleaner assembly integrity and better overall repair quality. Heavy-duty washer for compatible Maytronics Dolphin cleaner applications Helps support load distribution and secure assembly fit Useful during rebuild and hardware replacement work Supports more complete cleaner restoration Improves repair precision and fit confidence