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
1997 Infiniti QX4V6-3.3LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$160.00Shop/Dealer Price$208.70 - $291.91
2001 Infiniti QX4V6-3.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$174.38Shop/Dealer Price$226.01 - $323.44
2000 Infiniti QX4V6-3.3LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$158.46Shop/Dealer Price$206.83 - $288.92
2002 Infiniti QX4V6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$246.93Shop/Dealer Price$323.05 - $448.15
1997 Infiniti QX4V6-3.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$153.00Shop/Dealer Price$199.18 - $280.50
2003 Infiniti QX4V6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$249.21Shop/Dealer Price$325.74 - $452.44
2003 Infiniti QX4V6-3.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$176.84Shop/Dealer Price$229.11 - $328.41
2001 Infiniti QX4V6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$246.93Shop/Dealer Price$323.11 - $448.27
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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341 reviews
Honorio
14 years of experience
Honorio diagnosed and fixed my power window + outlets despite one of the parts I ordered being defective. He took the extra time to explain to me what the problems were and how he was going about fixing them. In the end, the entire job took longer than expected but he honored his original labor quote. I couldn't be more satisfied with the job he did.
2004 INFINITI G35 - WINDOW MOTOR / REGULATOR ASSEMBLY REPLACEMENT (DRIVER SIDE FRONT)
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192 reviews
Rocco
17 years of experience
Rocco was great.. Excellent service
2003 INFINITI G35 - CAMSHAFT POSITION SENSOR REPLACEMENT
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164 reviews
Theodore
11 years of experience
He did a great job
2000 INFINITI I30 - AXLE / CV SHAFT ASSEMBLY REPLACEMENT (DRIVER SIDE FRONT, PASSENGER SIDE FRONT)
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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