How much should it cost to replace an O2 sensor?
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2004 Lexus GX470 Question: How much should it cost to replace an O2 sensor?
Answer #1dandd May 13, 2011, 16:07Master
Your Lexus has 3-4 Oxygen Sensors at least. The front ones are a special type called Air Fuel Sensors and can be pricey.
The front ones run about $411 each and the rear one runs about $217 parts and labor. So make sure that you know which one to replace.
here are some shops: