Engine Exhaust O2 02 Oxygen Sensor Up Stream & Downstream Kit for GM OSA60246

I installed the new O2 sensors soon after receiving them and they have been working fine. I installed all four to avoid having the originals failing one at a time and when the weather gets worse during the next few months. Very satisfied and would recommend them to others.

I purchased this product about three weeks ago. After installing all four the bank 1 sensor 2 was still flagging the check engine light. After reaching out to the 1A auto customer service team explaining that it could be a faulty sensor, they sent me a new one in the mail free of charge. I installed the new one and the check engine light has been off since. I appreciate them for honoring their product and prompt service on this matter.

The product was as described. My mechanic had no issues with installation, and the vehicle is running fine. Substantially cheaper to purchase via Amazon.

first time buying from 1A auto and so far I am pleased with the product both in quality and price. I will order again and hope everything else will be as good

They seem to work. It took about 20 cycles of the engine for them to stop throwing an engine light just kept clearing the code until it stopped. Otherwise since then they seemed to work fine. They came with anti-seize already on the threads and once you take out the old ones you can definitely tell the difference between the upstream sensors and the downstream sensors.

These were very straightforward to install. Once installed the check engine lamp reset. The price was very reasonable.

Bought this use SUV last owner. Didn't take care of the maintenance check engine light kept coming on part of it was the exhaust sensors doing great. Now. I'm satisfied..

Fairly dissatisfied all together. Was chasing down engine codes that related to the Oxygen Sensors, so I decided to replace all 4 while I was at it. After replacing, nothing changed, so I took it into my Chevy Mechanic for diagnosis. Turns out B1S1 was a completely failed unit straight out the box. Replaced that sensor with original GM part, and all has been well since. Be wary of buying cheaper sensors

My check engine light was on my 2013 Chevy Silverado and my OBD II scanner said both upstream and downstream oxygen sensors were bad. I replaced all 4 but after a few weeks the check engine light came back on and told me the same thing again. I would not recommend these O2 sensors for this type of vehicle.

On 24 Aug 24 had check engine light with code P015B, Ordered 1AEEK01292 4 piece O2 oxygen and replace them on 9 Dec once replaced all my sensors check engine light come back on had a diagnostic check on 9 Dec with all 4 sensors had a code PO15B, PO15D PO15B,andPO15D with delayed and rich lean response on all 4 sensor, we call that a sleeping 02sensor The check engine light is came on and without, can on again with the same code, maybe they may wake up with the computer and the check engine lights will stay off