Walker Products 350-341118 oxygen sensor for the 2019-2025 Mazda MX-5 Miata 4-cylinder 2.0L and other vehicles measures the oxygen in the exhaust gas. Each Walker part number is made for its specific application and fitment position, and it provides the diagnostic feedback the ECU requires.
- Electrodes made of a gas-permeable platinum layer
- Measures oxygen levels so the air-fuel mixture can be fine-tuned, which helps fuel economy
- Determines the oxygen content of the exhaust gas and monitors the air-fuel ratio for combustion efficiency
- Monitors exhaust gases to help reduce pollutants
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
Quick facts
- Part: Walker Products 350-341118 oxygen sensor
- Fits: 2019-2025 Mazda MX-5 Miata 4-cylinder 2.0L and other vehicles
- Position: Upstream, downstream
- Condition: New
A worn sensor can show up as a poorly running engine, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. Those signs can have other causes, so with the engine off and cool, look over the sensor, its wiring harness and the connector for physical damage before you replace anything.
Fits
This direct-fit sensor is also made for the 2019-2021 Mazda CX-3 4-cylinder 2.0L and the 2020-2023 Mazda 2 4-cylinder 1.5L, among many other vehicles. If your car is not named here, find its year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: upstream, downstream
- Quantity per vehicle: 1
- Mounting type: threaded
Build and materials
- Type: narrow-band, 4-wire, direct fit
- Electrodes: gas-permeable platinum layer
- Heated: yes
- Condition: new
- Country of origin: China
In the box
One oxygen sensor, with a quantity of one per vehicle.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this the right oxygen sensor for a 2020-2023 Mazda 2 4-cylinder 1.5L?
Yes. Walker Products 350-341118 is made for the 2020-2023 Mazda 2 4-cylinder 1.5L, and that car takes one. For other cars, look up the year and engine in the "Vehicles it fits" section.
Is the Walker Products 350-341118 a narrow-band oxygen sensor?
Yes. Walker Products 350-341118 is a 4-wire, direct-fit, narrow-band oxygen sensor with a threaded mount.
What can happen when this upstream or downstream oxygen sensor wears out?
The engine can run poorly, fuel consumption can rise, or the malfunction indicator light can come on.
What is the platinum layer on this oxygen sensor for?
The electrodes are made of a gas-permeable platinum layer. A coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gas.
Is the Walker Products 350-341118 sold as a single sensor or a set?
Walker Products 350-341118 is one sensor per listing, and the fitment calls for a quantity of one per vehicle.
