
Average Reviews:

(More customer reviews)Got rid of the check engine light and the fuel economy is back up, but the $290 price seems excessive (this one sensor is 1.8% of what a new Mazda3 costs).
I did try a cheaper third party sensor first, but Amazon screwed that one up since despite their compatibility checker's assurance that it would fit, it didn't (not even the correct number of wires). After that experience I just went and bought this one - which is the original part.
I only hope it lasts longer than the 32,000 miles the first one did.
Click Here to see more reviews about: Denso 234-5015 Oxygen Sensor (Air and Fuel Ratio Sensor)
Denso Oxygen Sensor is designed to detect the amount of oxygen in the exhaust stream. It is constructed from high quality stainless steel, porous polytetrafluoroethylene, fluorine rubber, aluminum oxide, high-grade platinum and ceramics. This Sensor features double protection layer, aluminum oxide trap layer, porous PTFE filter and stainless steel housing. It is manufactured with precision to meet OE standards. This oxygen sensor can be installed easily and ensures longevity.
Click here for more information about Denso 234-5015 Oxygen Sensor (Air and Fuel Ratio Sensor)

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