2Pcs Upstream & Downstream O2 Oxygen Sensors For Toyota Corolla 1.8L (2014-2019)

Got a 2014-2019 Toyota Corolla with the 1.8L engine and a check engine light for oxygen sensors?

This set includes both the upstream and downstream O2 sensors—two pieces total.

They're direct fit, meaning they plug right in with no splicing or mods.

The part numbers cross with 234-4921 / 8946502390 for the upstream and 234-9140 / 8946702090 for the downstream.

So yeah, they're the correct ones.

They're unbranded but come with a lifetime warranty, which is pretty sweet.

If your fuel economy has dropped or you're getting codes, these sensors might be the fix.

Brand new, in original packaging.

Replacing both at once is a good idea—they wear out over time.

Get your Corolla running efficiently again and pass that emissions test!