Oxygen Sensor Replacement Estimate for Mazda 929

Mazda 929 Oxygen Sensor Replacement costs $159 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$142 to $195
Labor: $70 -$80
Parts: $72 -$115
Average Dealer price
$237 to 323
Average Shop price
$173 to 227
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
1991 Mazda 929V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$164.73Shop/Dealer Price$202.93 - $284.87
1995 Mazda 929V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$146.37Shop/Dealer Price$180.05 - $248.27
1988 Mazda 929V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$166.06Shop/Dealer Price$204.62 - $287.58
1994 Mazda 929V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$163.86Shop/Dealer Price$201.88 - $283.20
1993 Mazda 929V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$147.81Shop/Dealer Price$181.79 - $251.05
1991 Mazda 929V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$194.51Shop/Dealer Price$240.15 - $344.42
1989 Mazda 929V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$168.33Shop/Dealer Price$207.51 - $292.21
1992 Mazda 929V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$146.37Shop/Dealer Price$180.05 - $248.27
Show example Mazda 929 Oxygen Sensor Replacement prices

Parts required for a Mazda 929 Oxygen Sensor Replacement

Meet some of our expert Mazda mechanics

Real customer reviews from Mazda owners like you.

64 reviews
Brian
8 years of experience
Brian did a greater job than I could have hoped for! Very knowledgeable of my Mazda 3 and extra helpful. Thanks!!
2007 MAZDA 3 - DOOR LATCH REPLACEMENT (DRIVER SIDE FRONT)
Want Brian's expert advice? Ask your question now. Its free!
63 reviews
Melvin
6 years of experience
Very good worker
1993 MAZDA 626 - ENGINE MOUNT REPLACEMENT (REAR)
Want Melvin's expert advice? Ask your question now. Its free!
61 reviews
Cary
22 years of experience
Called a few hours before appointment to confirm, showed up on time. Very professional. My car is a pain in the *** to work on and it took him a little longer than expected, but no complaints from him or new charges. Highly recommended!
2001 MAZDA PROTEGE - SERPENTINE/DRIVE BELT REPLACEMENT
Want Cary's expert advice? Ask your question now. Its free!
15 reviews
Napoleon
22 years of experience
Nice person & very talented.
2012 MAZDA 3 - SPARK PLUG REPLACEMENT
Want Napoleon'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 Mazda Models