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Oxygen sensor?

Discussion in 'Gen 3 Prius Technical Discussion' started by Timothy S Wafer, Aug 16, 2019.

  1. Timothy S Wafer

    Timothy S Wafer New Member

    Joined:
    Jul 5, 2019
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    Location:
    Erieville, NY
    Vehicle:
    2010 Prius
    Model:
    III
    I'm looking at replacing my upstream oxygen sensor in my 2010 Prius. The old one has a hex head and can be removed by one of the special sockets. The new one which seems to be recommended everywhere I look, is a DENSO 2349090, which in the pictures appears perfectly round with no hex. How are you supposed to grip it to install or remove it? What am i missing?