These are a replacement shaft connector block to fit various Philips Sonicare toothbrushes which have the brush head replacement reminder feature and/or smart brush head recognition.
This shaft and seal assembly will only fit Sonicare toothbrushes that have the copper wires looped around the connector block for sensing the presence of ‘smart’ brush heads. To identify your Sonicare model check the bottom of your toothbrush handle for the HX number. This HX number is made up of the letters ‘HX’ followed by 4 digits, for example HX9340 as shown in the photo below.
This shaft connector block only fits Philips Sonicare toothbrushes with HX numbers marked on them that start with the following digits:
- HX64xx including the HX648A and all other HX64 models
- HX68xx including the HX680C, HX684B, HX685T and all other HX68 models
- HX96xx including the HX960K, HX962P and all other HX96 models
- HX99xx including the HX991B, HX991P, HX991R, HX991W, HX993B, HX993L, HX993S and all other HX99 models
You will need to slide the internal workings of your toothbrush out of the handle casing to fit your new shaft connector block. See our list of toothbrush repair guides for Sonicare models similar to yours.
Always store your toothbrush on its side with the head removed between uses. This is to prevent water from seeping down the shaft and past the seals. For more on how to extend the life of your brush see our electric toothbrush care tips page.
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