Oxygen Sensor Replacement Estimate for Subaru RX

Subaru RX Oxygen Sensor Replacement costs $118 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$104 to $143
Labor: $70 -$80
Parts: $34 -$63
Average Dealer price
$160 to 220
Average Shop price
$125 to 163
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
1989 Subaru RXH4-1.8L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$121.87Shop/Dealer Price$149.35 - $199.14
1986 Subaru RXH4-1.8L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$118.95Shop/Dealer Price$145.78 - $193.44
1986 Subaru RXH4-1.8L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$105.63Shop/Dealer Price$129.08 - $166.71
1988 Subaru RXH4-1.8L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$120.91Shop/Dealer Price$148.20 - $197.30
1989 Subaru RXH4-1.8L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$138.60Shop/Dealer Price$170.28 - $232.63
1988 Subaru RXH4-1.8L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$138.60Shop/Dealer Price$170.27 - $232.60
1987 Subaru RXH4-1.8L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$106.47Shop/Dealer Price$130.19 - $168.50
1987 Subaru RXH4-1.8L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$118.95Shop/Dealer Price$145.78 - $193.43
Show example Subaru RX Oxygen Sensor Replacement prices

Meet some of our expert Subaru mechanics

Real customer reviews from Subaru owners like you.

432 reviews
Patrick
22 years of experience
Patrick showed up early for our appointments, went over the issues of my car and laid out the options of what I could do afterwards. He is very down to earth and is honest about the problem at hand. My car was having a problem overheating so after inspecting the car and troubleshooting he said that the car might have to require work on it up to $800+ which they could do but he suggested that there were other cheaper options for me to try. I would totally recommend him.
1995 SUBARU LEGACY - CAR THERMOSTAT REPLACEMENT
Want Patrick's expert advice? Ask your question now. Its free!
282 reviews
Mark
6 years of experience
Mark is awesome!
2003 SUBARU FORESTER - TIMING BELT REPLACEMENT
Want Mark's expert advice? Ask your question now. Its free!
249 reviews
Russell
19 years of experience
Russell was very nice and knowlegable about our car, he made recommendations that we needed to do to the car.
2006 SUBARU OUTBACK - OIL CHANGE
Want Russell's expert advice? Ask your question now. Its free!
178 reviews
Chris
11 years of experience
Guy was very professional and knowledgeable. He completed the work in half the time I expected him to. At first, I did not believe him until he showed me the parts that he replaced.
2011 SUBARU FORESTER - POWER STEERING FLUID SERVICE
Want Chris'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 Subaru Models