AVERY 2PCS O2 Oxygen Sensor Set – Upstream & Downstream For Chevy Cobalt HHR Pontiac 07-10
About this item
This is a set of two AVERY oxygen sensors for specific GM models.
You get both the upstream (front) and downstream (rear) sensors.
They fit Chevy Cobalt and HHR, as well as some Pontiac models, from around 2007 to 2010.
The manufacturer part numbers are 234-4066 and 234-4668.
These are direct replacement, heated, 4-wire sensors with blade terminals.
They screw in, so installation is straightforward.
They're narrow-band technology, with a metal housing and black connector.
These sensors go before and after the catalytic converter.
AVERY gives a 2-year warranty on them.
They cross with a bunch of numbers like 3A13193, 3A25312207, and 6A234-4087.
If your check engine light is on for O2 codes, this bundle includes both positions.
Just make sure your vehicle is on the fitment list.
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