2pc Oxygen Sensor Set Upstream & Downstream For 2006 Chevy Colorado & GMC Envoy | 4-Wire | Direct Fit

Here's a complete set of two oxygen sensors for your 2006 Chevrolet Colorado or GMC Envoy.

You get both the upstream and downstream sensors, each with 4 wires and a black female connector.

They're brand new and include the dust shield and wire harness.

Part numbers are 234-4331 and 234-4348.

These are direct fit, so installation is straightforward—no messing around.

Built to last with a 3-year warranty.

Made in China, but they meet all the specs you need.

If your check engine light's on or you're running rough, these might just do the trick.