Review on Denso 234 4654 Oxygen Sensor by Patrick Stephani

Visit the DENSO website. They list 4 O2 sensors required depending on location in jeep. This is the front sensor on the driver's side in front of the driver's side coil. I can't tell on the Revain website as it doesn't list the 4 different ones needed for the Cherokee. Basically, they're all the same sensors, but they have different cable lengths and different connectors (with different keys), so they're not interchangeable. The plug fits very well with the factory wiring harness. with a long wire "pigtail" that you can plug into your old factory connectors.