| Brand | Unbranded |
|---|---|
| Number of Sensors | 2 |
| OE/OEM Part Number | 234-4066, 234-4668, 234-4342 |
| Fitment Type | Direct Replacement |
| Features | Direct Fit, Easy Installation |
| Placement on Vehicle | Lower, Upper |
Check the listing for details. 2Pcs Upstream & Downstream 02 O2 Oxygen Sensor For Chevy Cobalt HHR 2.2L 2.4L. Condition: New. Listed at 29.96 USD. Cobalt 2.2L L4 2007 2008 2009 2010. Q: How do I know the O2 sensor is good or not?. If the sensor is good, further diagnosis is required. There're many different codes for specific functional failures, which are NOT necessarily relevant to the sensor.