Oxygen Sensor Replacement Estimate for GMC Sierra 2500

GMC Sierra 2500 Oxygen Sensor Replacement costs $199 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$194 to $213
Labor: $70 -$80
Parts: $124 -$133
Average Dealer price
$340 to 359
Average Shop price
$238 to 250
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CarServiceYourMechanic PriceShop/Dealer Price
2004 GMC Sierra 2500V8-6.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$203.59Shop/Dealer Price$251.51 - $362.59
2004 GMC Sierra 2500V8-6.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$211.30Shop/Dealer Price$261.22 - $378.14
Show example GMC Sierra 2500 Oxygen Sensor Replacement prices

Parts required for a GMC Sierra 2500 Oxygen Sensor Replacement

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586 reviews
Joshua
22 years of experience
Joshua was very professional and friendly He took the time to explain the problem with the car. This was my first time using Your Mechanic and I plan to use the service again and ask for Joshua to be my mechanic.
1998 GMC YUKON - OIL CHANGE
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Chris
17 years of experience
Great job again
2007 GMC YUKON - SERPENTINE/DRIVE BELT REPLACEMENT
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283 reviews
Patrick
27 years of experience
Did the work quick very knowledgable
2004 GMC SAVANA 1500 - CAR IS NOT STARTING INSPECTION
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52 reviews
Chris
13 years of experience
I thought that this return work would be covered by previous install and was surprise to see a $70 charge to my charge card? Perhaps this was in error? I supplied the gas as I did previously it leaked out due to a a faulty fitting not seen during installation I guess? Please advise.
1976 GMC C15 - AC IS NOT WORKING 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.

Oxygen Sensor Replacement Estimates for Popular GMC Models