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The ORAL-B 80818665 is a genuine manufacturer replacement part or accessory for the iO Series M9 electric toothbrush line. Based on supplier data, this part is associated with the iO M9.4A1.1A configuration in a white finish and ships in retail box packaging. It is intended for use by dental professionals, service technicians, or knowledgeable end users performing maintenance or replacement on compatible iO Series electric toothbrush units. Exact function of the component is defined by its position in the iO M9 accessory and parts catalog.
This part falls within the Oral-B Health and Wellness Parts and Accessories category. It is applicable to iO Series M9 toothbrush configurations sold in the North American market. The white colorway and retail box packaging indicate this is a finished consumer-facing or field-replacement component rather than a bulk service part.
Designed for use with the Oral-B iO Series M9 electric toothbrush, specifically the M9.4A1.1A configuration for the North American market. Consult the iO Series parts catalog or the manufacturer to confirm fitment for your specific unit.
Power off and disconnect the toothbrush unit from any charging base before servicing or replacing components. Follow the manufacturer service documentation for the iO Series M9 when installing this part. If this part is being replaced under a warranty or service program, retain original packaging for verification purposes.
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