Oxygen Sensor Replacement Estimate for Chevrolet R20

Chevrolet R20 Oxygen Sensor Replacement costs $106 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$106 to $116
Labor: $70 -$80
Parts: $36
Average Dealer price
$164
Average Shop price
$128
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CarServiceYourMechanic PriceShop/Dealer Price
1987 Chevrolet R20V8-5.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$108.55Shop/Dealer Price$132.71 - $172.51
1987 Chevrolet R20V8-5.7LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$107.84Shop/Dealer Price$131.88 - $171.20
1987 Chevrolet R20V6-4.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$107.84Shop/Dealer Price$131.84 - $171.12
1987 Chevrolet R20V8-5.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$107.84Shop/Dealer Price$131.86 - $171.16
1987 Chevrolet R20V8-7.4LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$108.55Shop/Dealer Price$132.72 - $172.53
1988 Chevrolet R20V8-5.7LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$108.55Shop/Dealer Price$132.70 - $172.50
1987 Chevrolet R20V8-7.4LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$108.73Shop/Dealer Price$133.01 - $173.01
1988 Chevrolet R20V8-7.4LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$107.84Shop/Dealer Price$131.88 - $171.20
Show example Chevrolet R20 Oxygen Sensor Replacement prices
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Ben
36 years of experience
Ben was great! Very nice, and great service.
2006 CHEVROLET COBALT - OXYGEN SENSOR REPLACEMENT (REAR/LOWER/DOWNSTREAM)
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308 reviews
Dan
34 years of experience
Just a great person with integrity and morals. Recommend to anyone.
1996 CHEVROLET K1500 - OXYGEN SENSOR REPLACEMENT (FRONT/UPPER/UPSTREAM, REAR/LOWER/DOWNSTREAM)
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Rod
12 years of experience
Excellent first experience with Your Mechanic! Rod was quick, thorough and very nice, Will definitely request him for next repair, and recommend him to others.
1993 CHEVROLET ASTRO - STARTER REPLACEMENT
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110 reviews
Joel
16 years of experience
Joel told me what I needed to know on a pre-purchase inspection. It wasn't what I wanted to hear, but that is down to the vehicle, not to him. I'm grateful that he listened to my specs for the vehicle and was quite clear that the vehicle in question didn't meet my specs. The Your Mechanic software makes hash of communication when the mechanic is doing an inspection for a buyer who isn't present, so there was some stupid frustration in this appointment. If I could figure out how to book Joel directly, rather than through 'Your Mechanic' I would do so. I never met Joel, just talked with him on the phone. so my descriptions can be taken with a grain of salt.
1996 CHEVROLET C1500 - PRE-PURCHASE CAR INSPECTION
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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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