CCIYU 2-Piece Set Upper & Down Oxygen Sensor O2 For 2006-2007 Chevy Impala/Monte Carlo 5.3L

This CCIYU set includes both the upper and lower (upstream and downstream) oxygen sensors for your 2006-2007 Chevrolet Impala or Monte Carlo with the 5.3L engine.

It's a direct-fit replacement with 4-wire connectors.

The sensor lengths are 700mm and 900mm.

They come as a pair, with part number ZE714597499192101G.

They cross-reference with B234-4236 and B2344236.

Installation is straightforward, and they come with a 1-year warranty.

If your check engine light is on for O2 sensor codes, this set is a cost-effective fix.