Upstream Oxygen Sensor - Compatible with 2003 - 2006 Chevy Silverado 1500 2004 2005

After a lot of research on the web and comparing prices from the local stores and shops I decided to do it myself,It was the best. I could replace the 4 sensors on my truck for about 200. You might have to give some punches to the old ones to get them loose but W40 helped me. FACTS: I did it with OEM parts and it was cheap!

Huge savings from the dealership and local parts stores and works great. They made a huge improvement in initial pick up and over all engine performance not to mention some gas savings. They were cheap enough through Parts Geek that I could replace all 4 up and down stream.