Oxygen Sensor Replacement Estimate for Infiniti QX4

Infiniti QX4 Oxygen Sensor Replacement costs $174 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$147 to $258
Labor: $70 -$144
Parts: $77 -$114
Average Dealer price
$247 to 396
Average Shop price
$179 to 292
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CarServiceYourMechanic PriceShop/Dealer Price
2000 Infiniti QX4V6-3.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$153.00Shop/Dealer Price$199.16 - $280.47
2001 Infiniti QX4V6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$246.93Shop/Dealer Price$323.12 - $448.29
1999 Infiniti QX4V6-3.3LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$158.46Shop/Dealer Price$206.83 - $288.92
2003 Infiniti QX4V6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$246.93Shop/Dealer Price$323.05 - $448.15
2002 Infiniti QX4V6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$249.21Shop/Dealer Price$325.79 - $452.53
1998 Infiniti QX4V6-3.3LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$160.00Shop/Dealer Price$208.69 - $291.90
1999 Infiniti QX4V6-3.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$153.38Shop/Dealer Price$199.79 - $281.50
2003 Infiniti QX4V6-3.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$174.38Shop/Dealer Price$226.00 - $323.43
Show example Infiniti QX4 Oxygen Sensor Replacement prices

Parts required for a Infiniti QX4 Oxygen Sensor Replacement

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471 reviews
Peter
38 years of experience
2002 INFINITI QX4 - OIL CHANGE
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395 reviews
Tien
18 years of experience
Friendly and professinal
2008 INFINITI G35 - BRAKE PADS REPLACEMENT (REAR)
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282 reviews
Mark
6 years of experience
Mark is very professional. He also took time to explain the work and answered questions patiently.
2001 INFINITI I30 - CHECK ENGINE LIGHT IS ON INSPECTION
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153 reviews
Jose
10 years of experience
Did a fine job, even had to go to the auto parts store for the right part. The check engine light went out, so apparently it is fixed. Will use again. Maurie Deming
2001 INFINITI I30 - OXYGEN SENSOR REPLACEMENT (FRONT/UPPER/UPSTREAM)
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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.

Oxygen Sensor Replacement Estimates for Popular Infiniti Models