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.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$154 to $303
Labor: $70 -$80
Parts: $84 -$223
Average Dealer price
$261 to 539
Average Shop price
$188 to 362
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2003 Infiniti FX45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$199.70Shop/Dealer Price$257.53 - $373.86
2005 Infiniti FX45V8-4.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$159.10Shop/Dealer Price$206.91 - $292.88
2007 Infiniti FX45V8-4.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$306.82Shop/Dealer Price$391.47 - $588.17
2004 Infiniti FX45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$197.30Shop/Dealer Price$254.61 - $369.20
2008 Infiniti FX45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$199.70Shop/Dealer Price$257.55 - $373.90
2007 Infiniti FX45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$199.70Shop/Dealer Price$257.52 - $373.85
2006 Infiniti FX45V8-4.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$312.40Shop/Dealer Price$398.56 - $599.52
2008 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

Meet some of our expert Infiniti mechanics

Real customer reviews from Infiniti owners like you.

268 reviews
Richard
16 years of experience
Richard arrived a few minutes early, was extremely courteous and completed the job in half the time quoted. I am very satisfied and hope to work with Richard on my next YourMechanic service!
2006 INFINITI G35 - SPARK PLUG REPLACEMENT
Want Richard's expert advice? Ask your question now. Its free!
256 reviews
Jay
32 years of experience
Jay is a very proficient mechanic. He arrived slightly ahead of schedule ready to do the job at hand. He was thorough and pleasant to work with. I look forward to seeing him again with other projects. I would not hesitate to have him back to work on my vehicles.
2004 INFINITI FX35 - EXTERIOR DOOR HANDLE REPLACEMENT (PASSENGER SIDE FRONT)
Want Jay's expert advice? Ask your question now. Its free!
129 reviews
David
23 years of experience
David was great and we were very happy with his service. He showed up 15 minutes early which was very impressive. Was clean and thorough and explained everything in detail. I will definitely have some other services done on our cars and will request David do the work.
2001 INFINITI QX4 - BRAKE PADS REPLACEMENT (FRONT)
Want David's expert advice? Ask your question now. Its free!
110 reviews
Joel
16 years of experience
Friendly, on time and really helpful. Did an inspection of my car and explained what needed to be done and what didn't need to be done. Will be hiring him in the near future to get other work complete. Highly recommended!
2003 INFINITI FX35 - CAMSHAFT POSITION SENSOR REPLACEMENT
Want Joel's expert advice? Ask your question now. Its free!

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.

Oxygen Sensor Replacement Estimates for Popular Infiniti Models