Oxygen Sensor Replacement Estimate for Mazda B4000

Mazda B4000 Oxygen Sensor Replacement costs $129 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$126 to $154
Labor: $70 -$80
Parts: $56 -$74
Average Dealer price
$206 to 242
Average Shop price
$154 to 176
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CarServiceYourMechanic PriceShop/Dealer Price
1994 Mazda B4000V6-4.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$134.84Shop/Dealer Price$165.57 - $225.09
2001 Mazda B4000V6-4.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$148.92Shop/Dealer Price$183.24 - $253.36
2008 Mazda B4000V6-4.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$129.84Shop/Dealer Price$159.34 - $215.13
1998 Mazda B4000V6-4.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$129.84Shop/Dealer Price$159.37 - $215.17
2008 Mazda B4000V6-4.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$130.97Shop/Dealer Price$160.74 - $217.37
2000 Mazda B4000V6-4.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$130.97Shop/Dealer Price$160.73 - $217.34
2004 Mazda B4000V6-4.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$131.25Shop/Dealer Price$161.17 - $218.06
2009 Mazda B4000V6-4.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$129.84Shop/Dealer Price$159.39 - $215.21
Show example Mazda B4000 Oxygen Sensor Replacement prices

Parts required for a Mazda B4000 Oxygen Sensor Replacement

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Trung
7 years of experience
Trung was great to work with an very trustworthy guy. Flexible in his scheduling too.
1990 MAZDA MIATA - ALTERNATOR REPAIR
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Richard
16 years of experience
Richard was early for my appointment and he installed the thermostat on my 2004 Mazda 6 in less than an hour. Richard is very professional and I plan to use him for all future repairs.
2004 MAZDA 6 - CHECK ENGINE LIGHT IS ON INSPECTION
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Jeffrey
22 years of experience
Jeffrey was great. He did a very thorough pre-sale inspection of a car we were considering, went over it with me point-by-point, and provided his card for followup if necessary. He displayed both a high level of general knowledge as well as a working knowledge of the make and model car we asked him to look at. In the future I will request him specifically. Great job, and thanks!
2008 MAZDA 6 - PRE-PURCHASE CAR INSPECTION
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Jose
12 years of experience
Excellent job completed.
1993 MAZDA 929 - HEATER HOSES REPLACEMENT (LOWER, UPPER)
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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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