Driver Side, Before Catalytic Converter, Passenger Side, Before Catalytic Converter, Downstream Right, Driver Or Passenger Side, After Catalytic Converter, Driver Side Or Passenger Side, Before Catalytic Converter, Passenger Side, After Catalytic Converter, Downstream Left Or Downstream Right, Before Catalytic Converter, Downstream Left, Downstream Or Upstream, Downstream Right Or Downstream Left, Driver Or Passenger Side, After Catalytic Converter
Notes
Square connector shape; Heated Style
Type
4-wire
Quantity Sold
Sold Individually
Product Fit
Direct Fit
Wire Length
6.41 in. Wire Length
Thread Size
18 mm Thread Size
Connector Gender
Female Connector
Warranty
24-months or unlimited mile AC Delco limited warranty
Prop 65 Warning
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Promotions
Fuel Saver
Series
GM Original Equipment Series
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Return Policy
Not satisfied with your purchase? We offer returns for most items within 30 days of delivery for a refund. Check out our Return Policy for more details.
Warranty Policy
Right parts, guaranteed. If you find any defects, simply notify us within the warranty period, and we’ll take care of it. Check out our Warranty Policy for more details.
AC Delco®Oxygen Sensor, Sold Individually, Gm Original Equipment Series
1 Star
2
2 Star
0
3 Star
2
4 Star
2
5 Star
95
Oxygen Sensor, Sold Individually, Gm Original Equipment Series
5.0/5
Only buy this brand
CM
Posted by Carlandes M. / Fri, May 22
Oxygen Sensor, Sold Individually, Gm Original Equipment Series
5.0/5
Luv this brand
CM
Posted by Carlandes M. / Fri, May 22
O2 sensor OEMOxygen Sensor, Sold Individually, Gm Original Equipment Series
5.0/5
Quality parts to depend on them
CR
Posted by Cristobal R. / Thu, Apr 16
O2 sensor OEMOxygen Sensor, Sold Individually, Gm Original Equipment Series
5.0/5
Good quality parts!!
CR
Posted by Cristobal R. / Thu, Apr 16
Great ProductOxygen Sensor, Sold Individually, Gm Original Equipment Series
5.0/5
Fit perfectly, screwed in perfectly aswell. Put it in and check engine light to instantly disappeared.
Fit exactly how the original one was
JM
Posted by Joseph M. / Thu, Mar 19
Showing 1 - 5 of 66 Reviews
Have a question about this product?Ask here. Our team of experts will assist you along with your fellow CarParts.com community members. Please add your vehicle information including year, make, model to better assist you.
Question: Do y'all carry acdelco sensors (PO138 & PO139 or 140) and what's the price?Luis G. / Aug 03, 2024
Hi Luis, I'm glad to assist you. All three trouble codes point to a faulty bank 1 sensor 2, oxygen sensor, which is the downstream sensor. It is a guaranteed fit part if your car/truck/SUV appears in the vehicle fitment information below (after selecting the year, make, model, submodel, and engine size). Grab our sale promo and click the link below to buy it today. Happy shopping!
https://www.carparts.com/oxygen-sensor/ac-delco/ac12634064?can=cpje1043_CSQA_20240802
JE
Staff
Answered by Jeonino E. / Sat, Aug 03
Question: Hello, I have a 2013 buick encolve I have to replace the oxygen bank 2 senor 1 and senor 2 Is this the right fit for them?Janee H. / Dec 04, 2023
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
