TRQ O2 Oxygen Sensor Set 2 Downstream OSA60392 and 2 Upstream OSA60394 Fits 2014-2019 Chevrolet Silverado GMC Sierra 2016-2020 Chevrolet Express GMC Savana

Work well for me.

I am extremely upset with my orders . I have ordered this products three times the first time I only received one sensor that did not fit . Then I orders again and received 4 sensors none of them fit on my vehicle . Then I decided to get more sensors hoping that they would fit my vehicle . None of them is working and now I’m stuck with 8 sensors . All of this was night nightmare and I’m so disappointed I hope they will do something about this

I replaced the O2s with the exhaust when the catalytic converter went bad, so they original ones I had may or may not have been any good. Since the check engine lights stayed off, it appears these worked as designed. NOTE WHEN INSTALLING: the sensors are not labeled as upper or lower. You have to look at the notch inside the wiring harness and compare it to the original. If the vehicle harness will not easily clip onto the new sensor harness, then the notch alignment is causing the issues.

The downstream sensors are throwing all sorts of codes

Perfect fit 17 GMC sierra

O2 sensors look great but did NOT match my original sensors as described they would 2016 Silverado 1500 5.3

Can’t complain worth buying

Nice and cheap just how I like it. Got rid of my check engine code.