Walker Products 350-34479 oxygen sensor for the 2012-2015 Toyota Tacoma 4-cylinder 2.7L or V6 4.0L and other vehicles measures the oxygen in the exhaust gas to show how efficiently combustion is running. It is made for its specific application and position, and it gives the ECU the diagnostic feedback it expects.
- Narrow-band design with four wires
- Measures oxygen levels to fine-tune the air-fuel mixture and monitor the air-fuel ratio
- Electrodes made of a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Monitors exhaust gases to help reduce pollutants
Quick facts
- Part: Walker Products 350-34479 oxygen sensor
- Fits: 2012-2015 Toyota Tacoma 4-cylinder 2.7L or V6 4.0L and other vehicles
- Position: Downstream, downstream left, downstream right
- Condition: New
A failing sensor can show up as a poorly running engine, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. A damaged wiring harness or connector can be behind the same signs, so look them over for physical damage with the engine off and cool, and find the cause before you buy.
Fits
This is a direct-fit replacement oxygen sensor for the 2012-2015 Tacoma with the 4-cylinder 2.7L or V6 4.0L. It is listed for a wide range of Toyota and Lexus models, led by the 2013-2014 Toyota Tundra V6 4.0L, the 2014-2019 Tundra V8 4.6L, the 2015-2018 Tundra V8 5.7L and the 2013-2020 Toyota 4Runner V6 4.0L.
Specifications
Fit and size
- Position: downstream, downstream left, downstream right
- Quantity per application: 1
- Thread size: M18 - 1.5
Build and materials
- Type: narrow-band, 4-wire
- Electrodes: gas-permeable platinum layer, coated
- Condition: New
In the box
One oxygen sensor. This listing holds one sensor, and each application it is listed for takes one.
Frequently Asked Questions
Will this Toyota Tundra oxygen sensor work on a 2015-2018 Tundra V8 5.7L?
Yes, Walker Products 350-34479 is listed for the 2015-2018 Toyota Tundra V8 5.7L. If your truck has a different year or engine, look it up in the "Vehicles it fits" section.
Is this Toyota 4Runner oxygen sensor right for the 2013-2020 4Runner V6 4.0L?
Yes, this downstream oxygen sensor is listed for the 2013-2020 Toyota 4Runner V6 4.0L, one per application.
Is this Walker Products oxygen sensor narrow-band or wideband?
It is a narrow-band sensor with four wires. Walker Products 350-34479 determines the oxygen content of the exhaust gas to monitor the air-fuel ratio.
Does the 350-34479 come as one oxygen sensor?
Yes, this listing is a single sensor, and each application it is listed for takes one.
What does the platinum layer on this oxygen sensor do?
The electrodes are made of a gas-permeable platinum layer. A coating over them guards the electrode surfaces against contamination and erosion from combustion residue and exhaust particulates.
