Oxygen Sensor for 2006-2013 Lexus IS250 & More - DENSO 234-4521

DENSO Auto Parts 234-4521 oxygen sensor for the 2006-2013 Lexus IS250 V6 2.5L and other vehicles measures the oxygen in the exhaust and reports it to the engine computer. This DENSO Auto Parts oxygen sensor is a heated, narrow-band, four-wire unit made as a direct fit.

• Laser-welded stainless housing that resists corrosion
• PTFE filter that blocks contaminants under harsh engine conditions
• Dual-layer protection around the ceramic element for fast, reliable response times
• Aluminum oxide trap layer that protects the ceramic element from silicone and lead poisoning

Quick facts

• Part: DENSO Auto Parts 234-4521 oxygen sensor
• Fits: 2006-2013 Lexus IS250 V6 2.5L and other vehicles
• Position: Downstream, downstream left, downstream right
• Condition: New

A worn oxygen sensor can bring on a check engine light, rough running or higher fuel use. These signs alone don't show the sensor is at fault, since an engine misfire can light the same warning.

Fits

It is an oxygen sensor replacement for the 2006-2013 Lexus IS250 V6 2.5L, and the vehicles it fits include the 2008-2014 Lexus IS F V8 5.0L and the 2007-2011 Lexus GS350 V6 3.5L.

Specifications

In the box

One oxygen sensor. Depending on the vehicle, the fitment calls for one or two sensors, so a vehicle that takes two needs the second one ordered separately.