2x OELINE Oxygen Sensor Kit For 2001-2002 Toyota 4Runner 3.4L - Upstream & Downstream

This OELINE Autoparts oxygen sensor set is exactly what you need for a 2001-2002 Toyota 4Runner with the 3.4L engine.

You're getting two sensors—one for the upstream position and one for the downstream.

They're both 4-wire sensors with wire lengths of about 10 inches and 13 inches.

They're a direct replacement, so they bolt right in with no splicing or fuss.

Backed by a 1-year warranty.

If your 4Runner is throwing a check engine light for O2 codes or you're just doing some preventative maintenance, these will get you back on the road.

Solid, reliable parts.