ECCPP 4-Piece O2 Oxygen Sensor Set – Upstream & Downstream For 2001-2003 Mercedes ML320 3.2L

This is a complete set of four brand new ECCPP oxygen sensors for your 2001-2003 Mercedes-Benz ML320 with the 3.2L engine.

You're getting both upstream and downstream sensors—positions 1 and 2—so you can replace the whole set at once.

They're heated sensors with a blade terminal type and a thread size of M18.

They mount via a threaded screw-on attachment and put out a signal between 0.2V and 0.8V.

Each sensor has 4 pins, and they're a direct fit, specific to your ML320.

The manufacturer part number is E81622500CP, and they come with a 1-year warranty.

The packaging is original and unopened.

If your check engine light is on or you're noticing poor fuel economy, swapping out these sensors might just clear things up.

They're made to bolt right in without any fuss.