15894 Premium OE Fitment Oxygen Sensor - Compatible With Select 2002-08 Buick, Chevrolet, GMC, Isuzu, Oldsmobile, Pontiac, Saab, and Saturn Cars, Trucks, Vans, and Suvs

Update 8/2018 - Still no code, looks like this is doing the job and lasting just fine.Works great in my 2007 Chevy Express. This was the right side upstream (pre-cat) oxygen sensor in that vehicle, which I determined was the issue by checking the engine codes, P0050 and P0059. I also looked for a blown fuse or damaged wires from the sensor before replacing just in case it was one of those. The connector fits perfectly and the cord was even a little longer than OEM. I used a high quality adjustable crescent-style wrench tightened as much as possible before turning and the old one came out fine. Tip: Wear gloves when doing this as it comes loose suddenly.I reset the engine light and no more code after several months.You might want to double check the Bosch fitment guide before purchasing an oxygen sensor. While amazon says this is only for downstream right on my car and shows another part for upstream, the updated Bosch website says this one is both upstream and downstream right side, while 15895 is for both left side oxygen sensors. I double checked with a Bosch rep who confirmed the Bosch website info is more recent and 15894 correctly matches OEM specs.

Perfect fit on my 2004 Chevy Express 2500 6.0. Just keep in mind that Left and Right side are the same sensor but different connector, 15895 Deiver side (gray connector), 15894 Passenger side (Black connector).Perfect fit on my 2004 Chevy Express 2500 6.0. Just keep in mind that left and right side are the same sensor but different connector, Be sure to keep the wires away from any source of extreme heat.

The wiring was too short to reach the socket, so I had to unclip the wiring harness and adjust things to reach this O2 sensor. Then I found it wouldn't plug in, as the plugs were very slightly different. I was able to solve both problems by cutting off the plug and splicing on the plug from the bad O2 sensor.

This is the downstream or back "muffler" side of the catalatic converter, it did work for the upstream location "engine" side, to make my engine light turn off and stay, just pay attention to location.

Will be returning and heading to the auto parts store***Update: this does fit the Envoy - old part was a different shape and the parts store listed the Bosch 15894 as the correct sensor. Running fine.

I had a check engine light come up on my 2005 chevy express van v6. The codes pointed to bad oxygen sensors. Threw two of these on for replacements and the lights never came back.

It was what was wrong with my van, and after I go to put in, everything went back to normal, thank you

It worked! Happy with this part.

Great shipping time

Car: 2005 Chevy Malibu 2.2L Base. Works Great. The Auto shop recommended purchasing 15740, but I purchased this instead. It had a better rating and I can't remember where anymore, but I found a website saying this would work. Also used a 15899 for the other sensor which was recommended.

works awesome with my envoy