Walker Products 350-34186 oxygen sensor for the 1999-2002 Mercedes-Benz SL500 V8 5.0L and other vehicles measures the oxygen in the exhaust gas. This Walker Products oxygen sensor is a 4-wire, narrow-band, direct-fit unit.
- Oxygen readings help fine-tune the air-fuel ratio for fuel economy and combustion efficiency
- Built for its specific application and fitment position, with the diagnostic feedback the ECU requires
- Monitors exhaust gases to help reduce pollutants
- Coating guards the electrode surfaces against contamination and erosion from combustion residue and particulates
- Electrodes made of a gas-permeable platinum layer
Quick facts
- Part: Walker Products 350-34186 oxygen sensor
- Fits: 1999-2002 Mercedes-Benz SL500 V8 5.0L and other vehicles
- Position: Upstream, downstream, upstream left, upstream right, downstream left, downstream right
- Condition: New
A failing oxygen sensor can show up as rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light, but several other faults can look like this. Before replacing it, look over the sensor, wiring harness and connector for physical damage with the engine off and cool.
Fits
A wide range of Mercedes-Benz models are listed for this sensor, including the 1998-2001 Mercedes-Benz CL500 V8 5.0L and the 1996-2000 S500 V8 5.0L. If your Mercedes is not one of these, look up its year and engine in the "Vehicles it fits" section. This listing is a single sensor, and the fitment gives a quantity of one.
Specifications
Fit and size
- Position: upstream, downstream, upstream left, upstream right, downstream left, downstream right
- Quantity per application: 1
- Thread: M18 - 1.5, threaded
- Number of wires: 4
Build and materials
- Type: narrow-band, direct fit
- Electrodes: gas-permeable platinum layer
- Electrode surfaces: coated
- Condition: New
Frequently Asked Questions
Is the Walker Products 350-34186 a Mercedes S500 oxygen sensor for the 1996-2000 V8 5.0L?
Yes. Walker Products 350-34186 is listed for the 1996-2000 Mercedes-Benz S500 V8 5.0L, and the fitment gives a quantity of one.
Does this work as a Mercedes SL500 oxygen sensor on the 1999-2002 V8 5.0L?
Yes. Walker Products 350-34186 is listed for the 1999-2002 Mercedes-Benz SL500 V8 5.0L. For other models, use the year and engine lookup in the "Vehicles it fits" section.
What thread size does this narrow-band oxygen sensor have?
The thread is M18 - 1.5. This oxygen sensor is a 4-wire, narrow-band, direct-fit unit.
What are the electrodes in this oxygen sensor made of?
The electrodes are made of a gas-permeable platinum layer. A coating protects the electrode surfaces from combustion residue and particulates in the exhaust gas.
What signs can a failing narrow-band oxygen sensor show?
The engine may run poorly, fuel use and exhaust emissions may rise, or the malfunction indicator light may come on. Newer vehicles also store fault codes in the ECU that a shop can read.
