Oxygen Sensor for 2007-2013 GMC Sierra & More - Walker 350-34412

Walker Products 350-34412 oxygen sensor for the 2007-2013 GMC Sierra V8 5.3L and other vehicles reads the oxygen content of the exhaust gas. It lets the engine computer monitor the air-fuel ratio for combustion efficiency.

• Narrow-band, 4-wire direct-fit sensor made for its specific application and fitment position
• Electrodes made of a gas-permeable platinum layer
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Oxygen readings let the engine fine-tune the air-fuel ratio, which supports fuel economy
• Monitors exhaust gases to help reduce pollutants

Quick facts

• Part: Walker Products 350-34412 oxygen sensor
• Fits: 2007-2013 GMC Sierra V8 5.3L and other vehicles
• Condition: New

A failing sensor can show up as rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light. Those signs alone do not prove the sensor is the problem, since an exhaust leak near the sensor can throw off readings too. With the engine off and cool, look over the wiring harness and connector for physical damage.

Fits

The vehicles it fits include the 2001-2003 Chevrolet Malibu V6 3.1L, the 2000-2002 Chevrolet Silverado 1500 V8 4.8L or 5.3L and the 2002 Silverado 1500 V6 4.3L. It is also a 2008 GMC Sierra oxygen sensor for the V8 5.3L. Each application takes one, and this listing is one sensor.

Specifications

Interchange: CTK-OSGM4011