DENSO 234-9051 Upstream Oxygen Sensor – 4-Wire For Toyota Tundra, Tacoma, 4Runner

Got a check engine light related to your oxygen sensor?

Don't ignore it.

This is a DENSO 234-9051 upstream oxygen sensor.

It's a direct fit for a bunch of Toyota trucks and SUVs—think 4Runner, Tundra, Tacoma.

It's a 4-wire sensor with a male bullet connector and a black connector body.

This is the upstream (before cat) sensor, so it's critical for your engine's air/fuel mixture.

It comes with a 5-year manufacturer warranty, so you know it's built to last.

Installation is straightforward, and it's designed to be a direct replacement.

If you've been running rich or getting bad MPGs, swapping this out might be the fix.

Fevirad brand, DENSO spec.