Oxygen Sensor Replacement Estimate for GMC Sierra 2500

GMC Sierra 2500 Oxygen Sensor Replacement costs $195 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$194 to $205
Labor: $70 -$80
Parts: $124 -$125
Average Dealer price
$340 to 343
Average Shop price
$238 to 239
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2004 GMC Sierra 2500V8-6.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$204.89Shop/Dealer Price$253.13 - $365.18
2004 GMC Sierra 2500V8-6.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$201.12Shop/Dealer Price$248.49 - $357.77
Show example GMC Sierra 2500 Oxygen Sensor Replacement prices
i
Have a car question? Get free advice from our top-rated mechanics.

Parts required for a GMC Sierra 2500 Oxygen Sensor Replacement

Meet some of our expert GMC mechanics

Real customer reviews from GMC owners like you.

223 reviews
Joe
38 years of experience
Very friendly and helpful. Awesome!
2011 GMC ACADIA - OIL CHANGE
Want Joe's expert advice? Ask your question now. Its free!
186 reviews
Isai
22 years of experience
Isai was extreemly knowledgable and willing to share his insights. He was also extreemly professional and promt.
2000 GMC C2500 - CAR IS NOT STARTING INSPECTION
Want Isai's expert advice? Ask your question now. Its free!
137 reviews
Richard
6 years of experience
Great
2006 GMC YUKON XL 1500 - CHECK ENGINE LIGHT IS ON INSPECTION
Want Richard's expert advice? Ask your question now. Its free!
77 reviews
Richard
6 years of experience
Not only was it completely devoid of pain, it was actually a pleasure. To get my car fixed. I still can't believe this is real.
2002 GMC ENVOY - BRAKE PEDAL VIBRATES OR SHAKES INSPECTION
Want Richard'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 GMC Models