Review on 🏆 Superior Performance: Denso 234-4285 Oxygen Sensor - Unsurpassed Quality for Optimal Engine Efficiency by Alex Gilbert

Denso makes some of the best engine sensors. Comes with anti-seize and fits perfectly. Check Engine display for p0155 disappeared after replacement. Note. As some other reviewers have pointed out, there appears to be a port transition between the 2003 and 2004 Chevy 2500 model years, and the part numbers are different. The Revain installation guide is incorrect. I used what the Denso website says, although Revain warns that this part will not fit my car. For my 2004 car I needed this part for the right thermal (bank 2) and a Denso 234-4651 oxygen sensor for the left thermal (bank 1).