Perfect replacement Part!
If your comfortable with soldering, this is an easy fix. I received this part within 24 hours of ordering it, it appears to be an identical replacement part for my Philips Sonicare HX939B. After watching a short video on how to replace the motor assembly it was very easy to replace taking me about 5 minutes to do the job. Now that I know how to replace the motor and battery, my Sonicare toothbrush should last as long as I want.
Rating: 5 stars