Oxygen Sensor Replacement Estimate for Mazda B2300

Mazda B2300 Oxygen Sensor Replacement costs $135 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$124 to $153
Labor: $70 -$80
Parts: $54 -$73
Average Dealer price
$201 to 239
Average Shop price
$151 to 175
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CarServiceYourMechanic PriceShop/Dealer Price
2009 Mazda B2300L4-2.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$136.14Shop/Dealer Price$167.19 - $227.68
1997 Mazda B2300L4-2.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$134.91Shop/Dealer Price$165.73 - $225.35
2007 Mazda B2300L4-2.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$134.91Shop/Dealer Price$165.68 - $225.28
2005 Mazda B2300L4-2.3LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$147.64Shop/Dealer Price$181.62 - $250.78
2003 Mazda B2300L4-2.3LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$149.11Shop/Dealer Price$183.42 - $253.64
2002 Mazda B2300L4-2.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$136.14Shop/Dealer Price$167.18 - $227.67
2005 Mazda B2300L4-2.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$136.44Shop/Dealer Price$167.66 - $228.44
2002 Mazda B2300L4-2.3LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$147.64Shop/Dealer Price$181.64 - $250.81
Show example Mazda B2300 Oxygen Sensor Replacement prices
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Parts required for a Mazda B2300 Oxygen Sensor Replacement

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249 reviews
Russell
19 years of experience
Very nice guy and has a lot knowledge. This particular recommendation wasn't correct (to replace the entire headlight when only the bulb socket was broken), but he alerted me to the problem which I actually can fix myself.
2004 MAZDA 3 - LIGHTS (HEADLAMPS/BEAMS/BRAKES) INSPECTION
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153 reviews
Jose
10 years of experience
Jose was punctual and had all the answers to my car problems. He also finished he job thoroughly and quickly. He maintained a high level of professionalism and worked with my schedule when the app did not display his availability. I would definitely recommend him to friends, family, members, and strangers!
2005 MAZDA 6 - IGNITION COIL REPLACEMENT
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136 reviews
Casey
19 years of experience
Casey was really good. He knows what he is doing. Very friendly and explains the problems and issues in detail. Trustworthy as well.
2006 MAZDA 6 - OIL CHANGE
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38 reviews
Justin
15 years of experience
Justin was great. Very professional and very knowledgeable. I highly recommend him. He's an asset to yourmechanic and all around fair and excellent human being. He pointed out extra tips for my mazda6, for maintenance and made a few recommendations. I enjoyed his service and company.
2014 MAZDA 6 - OIL CHANGE
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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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