O2 Sensor Part Number

Hello! I need to replace the O2 sensor on my 2002 Isuzu Rodeo LS. The error code (P0155) tells me it is Bank 2 Sensor 1. I was wondering if the O2 sensors are all the same part number or are they different? If they're different, could you provide me with the correct part number, please?Thank you for any help you are able to provide.Chris