2x Upstream & Downstream Oxygen O2 Sensor Kit For Audi A4/Q5/A6 2.0L 2009-2017

This set includes both upstream and downstream O2 sensors for your Audi—fits A4, A5, A6, Q5, and allroad models from 2009 to 2017 with the 2.0L engine.

They’re brand new, direct-fit sensors (narrowband type, heated, with a 4-wire harness and M18 thread).

Triple sealing and dual laser welding tech mean they’re durable and corrosion-resistant, plus they’re supposed to give a nice power bump.

Comes with a 1-year warranty and all necessary hardware (stainless sleeve, harness).

Interchange numbers: 350-35064, 17024, 17148, ST-25035, and more.

OE numbers like ES11083 also apply.

Note: fits B1S1 and B1S2 positions.