Walker Products 350-34948 oxygen sensor for the 2013-2015 Chevrolet Malibu 4-cylinder 2.0L or 2.5L, the 2016-2019 Malibu 4-cylinder 1.8L and other vehicles measures the oxygen in the exhaust gas and gives the ECU the feedback it needs. It is a direct-fit upstream sensor.
- Four-wire, narrow-band design with an M18 - 1.5 thread
- Electrodes made of a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases
- Measures oxygen levels to help fine-tune the air-fuel mixture and support fuel economy
- Monitors exhaust gases to help reduce pollutants
Quick facts
- Part: Walker Products 350-34948 oxygen sensor
- Fits: 2013-2015 Chevrolet Malibu 4-cylinder 2.0L or 2.5L, the 2016-2019 Malibu 4-cylinder 1.8L and other vehicles
- Position: Upstream, upstream left, upstream right
- Condition: New
A failing sensor can show up as rough running, higher fuel consumption or a lit check engine light. A damaged wiring harness or connector can be behind the same signs, so find the cause before you buy a sensor. This listing is one sensor for one upstream position; the 2013-2015 Chevrolet Malibu 4-cylinder 2.0L or 2.5L takes one.
Fits
This oxygen sensor is listed for a wide range of Chevrolet, GMC, Buick and Cadillac models, including the 2017-2021 GMC Acadia 4-cylinder 2.5L and the 2014-2019 Chevrolet Impala 4-cylinder 2.5L. If your car is not named here, look up its year, make and model in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: upstream, upstream left, upstream right
- Thread size: M18 - 1.5
- Number of wires: 4
- Sold as: one sensor
Build and materials
- Type: narrow-band
- Electrodes: gas-permeable platinum layer
- Condition: New
Interchange: CTK-OSGM4027
Frequently Asked Questions
Is this the right Chevy Malibu oxygen sensor for a 2016-2019 Malibu 4-cylinder 1.8L?
Yes. Walker Products 350-34948 is listed for the 2016-2019 Chevrolet Malibu 4-cylinder 1.8L, and also for the 2013-2015 Malibu with the 2.0L or 2.5L 4-cylinder.
Is this the right Chevy Impala oxygen sensor for a 2014-2019 Chevrolet Impala 4-cylinder 2.5L?
Yes. Walker Products 350-34948 is listed for the 2014-2019 Chevrolet Impala with the 4-cylinder 2.5L engine, and that engine takes one sensor.
Is this Walker Products oxygen sensor narrow-band or wideband?
This sensor is narrow-band. It is a 4-wire direct-fit unit with an M18 - 1.5 thread.
How can I look over an oxygen sensor for damage?
With the engine off and cool, look at the sensor, its wiring harness and the connector for physical damage. A shop can test the sensor's readings if the cause is still unclear.
What does the coating on this oxygen sensor protect against?
The coating guards the electrode surfaces against contamination and erosion from combustion residue and particulates in the exhaust gases. The electrodes are made of a gas-permeable platinum layer.
