Walker Products 350-31027 oxygen sensor for the 1995-1999 Chevrolet Silverado V8 5.7L and other vehicles measures the oxygen content of the exhaust gas. This Walker Products oxygen sensor is a narrow-band, direct-fit unit made for a specific application and fitment position, and it gives the ECU the diagnostic feedback it needs.
- Monitors exhaust gases and reduces pollutants
- Determines oxygen content in the exhaust gas and tracks the air-fuel ratio for combustion efficiency
- Electrodes with a gas-permeable platinum layer
- Measures oxygen levels so the air-fuel mixture can be fine-tuned, which helps fuel economy
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
Quick facts
- Part: Walker Products 350-31027 oxygen sensor
- Fits: 1995-1999 Chevrolet Silverado V8 5.7L and other vehicles
- Position: Upstream, downstream, upstream left, upstream right
- Condition: New
A failing oxygen sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light, and newer vehicles may store a fault code. Other faults produce these symptoms too, so with the engine off and cool, look over the sensor, its wiring harness and the connector for physical damage before you replace the sensor.
Fits
This listing is one sensor. It fits the 1995-1999 Chevrolet Silverado V8 5.7L and the 1987-1990 Jeep Wrangler 6-cylinder 4.2L, and it is also an oxygen sensor for the 1997-1998 Chevrolet Malibu 4-cylinder 2.4L; each takes one. If your car is a different year, model or engine, look it up in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: upstream, downstream, upstream left, upstream right
- Quantity per vehicle: 1
- Thread: M18 - 1.5
Build and materials
- Type: narrow-band, direct fit
- Electrodes: gas-permeable platinum layer
- Condition: new
Interchange: CTK-OSGM1001
Frequently Asked Questions
Is this the oxygen sensor for a 1987-1990 Jeep Wrangler 6-cylinder 4.2L?
Yes. Walker Products 350-31027 is listed for the 1987-1990 Jeep Wrangler 6-cylinder 4.2L, one sensor per application. For other years or engines, look up your car in the "Vehicles it fits" section.
Is the Walker Products 350-31027 a narrow-band or a wideband sensor?
Walker Products 350-31027 is a narrow-band, direct-fit oxygen sensor. It has electrodes made of a gas-permeable platinum layer.
What can a failing oxygen sensor do to how the engine runs?
It can contribute to rough running, higher fuel consumption, more exhaust emissions or a malfunction indicator light. A shop can read any stored fault codes to find the cause.
What does the coating on this oxygen sensor protect against?
The coating keeps combustion residue and particulates in the exhaust gas from contaminating and eroding the electrode surfaces. The electrodes themselves have a gas-permeable platinum layer.
Does this sensor replace the number CTK-OSGM1001?
Yes. CTK-OSGM1001 is listed as an interchange number for Walker Products 350-31027, so a sensor cross-referenced to it is covered by this part.
