Oxygen O2 Sensor Upstream & Downstream Compatible with 2004-2007 Dodge Ram 1500 Magnum Charger Commander Liberty Chrysler 300 Mitsubishi - Replaces 56028994AA 56028994AB 05149170AA OS5249 - Set of 4

Didn't fix my problem these are all upstream sensors for my 2004 dodge ram 1500. My codes keep popping up now for bank 1 and 2 sensor 2 which is downstream. My light hasn't come on for bank 1 and 2 senor 1 on both sides so that's good which tells me that these are upstream sensors not downstream.

Good price, but Dodge on board computer is very sensitive and the engine light went on after install. Code ready reports that all O2 sensors needed replaced.

Check engine light came on faster than it did when I still had the old sensors on. I keep clearing it to make sure it’s not just doing that because I changed the old ones out and this is the third time my Check Engine light has popped right back on. No way these are two different sets of O2 Sensors. Dodge mentioned to me that they have always had problems with aftermarket 02 sensors on their vehicles. Go w/ Bosch or Mopar. Amazon 02 Sensors won’t do you any good.

These never functioned. Tested and not giving proper voltage outputs.

I should have never tried to save money going this route. Replaced the catalytic converters and now all 4 sensors are reading faulty. These are a cheap substitute and a waste of time and money.