Walker Products 250-241132 oxygen sensor for the 2018-2020 Chevrolet Equinox 4-cylinder 2.0L and other vehicles measures the oxygen in the exhaust gas to gauge combustion efficiency. This Walker Products oxygen sensor is a 4-wire, narrow-band unit that gives the ECU diagnostic feedback.
- Narrow-band sensor with four wires
- Measures the oxygen content of the exhaust gas to monitor the air-fuel ratio
- Electrodes with a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Made for its specific application and position on the vehicle
Quick facts
- Part: Walker Products 250-241132 oxygen sensor
- Fits: 2018-2020 Chevrolet Equinox 4-cylinder 2.0L and other vehicles
- Position: Downstream, downstream left, downstream right
- Condition: New
A failing sensor can show up as rough running, higher fuel use or emissions, or a lit check engine light. These signs alone do not prove this sensor is at fault; an exhaust leak is one other source of bad readings.
Fits
It is listed for a wide range of Chevrolet, GMC, Cadillac and Buick models. It is a direct-fit Chevy Equinox oxygen sensor replacement for the 2018-2020 Equinox 4-cylinder 2.0L, and also fits the 2014-2018 Chevrolet Silverado 1500 V8 5.3L and the 2014-2019 Silverado 1500 V6 4.3L or V8 6.2L, plus the 2013-2015 Chevrolet Malibu 4-cylinder 2.5L, the 2013-2022 Malibu 4-cylinder 2.0L and the 2016-2019 Malibu 4-cylinder 1.8L. These cars take one sensor each, and this listing is one sensor. Find a car not named here in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: downstream, downstream left, downstream right
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
- Number of wires: 4
Build and materials
- Type: narrow-band, direct fit
- Electrodes: gas-permeable platinum layer
- Condition: New
Frequently Asked Questions
Is this the right Chevy Equinox oxygen sensor for a 2018-2020 Chevrolet Equinox 4-cylinder 2.0L?
Yes. Walker Products 250-241132 is listed for the 2018-2020 Chevrolet Equinox 4-cylinder 2.0L, and that Equinox takes one sensor.
Is this a Chevy Malibu oxygen sensor for the 2016-2019 Malibu 4-cylinder 1.8L?
Yes. It is listed for the 2016-2019 Chevrolet Malibu 4-cylinder 1.8L, as well as the 2013-2022 Malibu 4-cylinder 2.0L and the 2013-2015 Malibu 4-cylinder 2.5L.
Is this oxygen sensor wideband or narrow-band?
It is narrow-band. Walker Products 250-241132 has four wires and an M18 - 1.5 thread.
Can a failing oxygen sensor raise fuel use?
Yes. A failed sensor might make the engine run poorly, raise fuel consumption or exhaust emissions, or turn on the malfunction indicator light, and a shop can read the stored fault codes.
What does the platinum layer on this oxygen sensor do?
The electrodes have a gas-permeable platinum layer. The coating keeps combustion residue and particulates in the exhaust from contaminating or eroding the electrode surfaces.
