Oxygen Sensor Replacement Estimate for Infiniti FX45

Infiniti FX45 Oxygen Sensor Replacement costs $207 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$154 to $303
Labor: $70 -$80
Parts: $84 -$223
Average Dealer price
$261 to 539
Average Shop price
$188 to 362
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CarServiceYourMechanic PriceShop/Dealer Price
2004 Infiniti FX45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$199.70Shop/Dealer Price$257.53 - $373.86
2006 Infiniti FX45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$197.30Shop/Dealer Price$254.65 - $369.28
2004 Infiniti FX45V8-4.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$159.10Shop/Dealer Price$206.83 - $292.75
2003 Infiniti FX45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$197.30Shop/Dealer Price$254.61 - $369.20
2005 Infiniti FX45V8-4.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$160.78Shop/Dealer Price$208.91 - $296.07
2008 Infiniti FX45V8-4.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$311.28Shop/Dealer Price$397.00 - $597.01
2008 Infiniti FX45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$200.30Shop/Dealer Price$258.43 - $375.33
2006 Infiniti FX45V8-4.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$306.82Shop/Dealer Price$391.54 - $588.30
Show example Infiniti FX45 Oxygen Sensor Replacement prices

Parts required for a Infiniti FX45 Oxygen Sensor Replacement

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286 reviews
Dave
18 years of experience
Dave arrived on time, got the job done quickly and even helped me with another small problem free of charge. Very amiable mechanic and would definitely recommend to anyone who needs service done on their car.
2005 INFINITI G35 - BRAKE PADS REPLACEMENT (FRONT, REAR)
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248 reviews
Stefan
12 years of experience
Stefan is honest, reliable, punctual, knowledgeable, and competent. It can't get better than that! My car is a pain to work with but Stefan never gets rattled. I hope you guys pay him well!
2004 INFINITI G35 - WINDOW IS NOT WORKING INSPECTION
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246 reviews
Godwin
19 years of experience
Godwin was one of the best most informative mechanics I have ever worked with. I am requesting him to do the rest of the work my car needs and will gladly refer him and yourmechanic to others.
2004 INFINITI G35 - OIL CHANGE
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59 reviews
Steven
16 years of experience
Great service! Thanks Steven!
2003 INFINITI M45 - VALVE COVER GASKET REPLACEMENT
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All about Oxygen Sensor Replacement

With each new model year, manufacturers are adding more oxygen sensors to better manage engine operation. Some high performance engines have an oxygen sensor for each cylinder as well as one for the rear of each catalytic convertor. The sensors are located either underneath the hood or underneath the car. The oxygen sensors are connected (screwed) to the exhaust pipe, either in front or back of the catalytic converter. The front (upstream) sensors measure the amount of oxygen in the exhaust system. The purpose of the front oxygen sensor(s) is to measure how rich or lean the gases are as the gases exit the combustion chamber. Depending upon whether the exhaust gas is lean (high in oxygen content) or rich (low in oxygen content), the amount of fuel entering the engine is adjusted by the engine management computer to try and maintain an ideal mixture that produces the lowest emissions output from the catalytic convertor. Rear (downstream) sensors are located behind the catalytic converter. The purpose of the rear oxygen sensor(s) is to monitor the oxygen content of the exhaust gases leaving the catalytic convertor. If one or more of the oxygen sensors are faulty, your car may not pass the emissions test. If you drive your car with a faulty oxygen sensor, you may get poor gas mileage and it can damage the catalytic converter.

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