AIUSLN 2-Pack Oxygen O2 Sensor Set – Upstream & Downstream For Subaru Forester/Impreza/Legacy 2.5L

If your Subaru with a 2.5L engine—like a Forester, Impreza, or Legacy—is throwing a check engine light or running rough, these oxygen sensors might be the fix.

This AIUSLN set includes both upstream and downstream sensors, front and rear.

They're direct fit, screw-in style, with 5-wire and 4-wire options depending on position.

Cross-references OEM numbers like 22641AA360, 22641AA36A, and interchange part numbers 2349123, 15169, 15171, and 2133941.

Connectors are male blade and bullet types.

Metal, plastic, and rubber construction.

Comes in a branded box, 350g total weight.

3-year warranty, so they're confident in them.

If you're replacing these yourself, it's a solid upgrade over the old worn-out ones.