: oxygen sensor help

02-07-13, 10:33 PM
Helo just asking the 2001 catera has four oxygen sensor i was wanting to know if they would all be the same
part numbers thanks

02-07-13, 11:02 PM
They are different, the front two have same part numbers and the back two have the same part numbers. Also, make sure to get the OEM (AC Delco or Bosch) brand sensors, these cars don't like after market ones.