Walker Products 350-34190 oxygen sensor for the 1998-2004 Nissan Frontier 4-cylinder 2.4L and other vehicles measures the oxygen in the exhaust gas to gauge combustion efficiency. This downstream Walker Products oxygen sensor is a 4-wire, narrow-band, direct-fit unit made for its specific application and fitment position, and it gives the ECU the diagnostic feedback it needs.
- Coating guards the electrode surfaces against contamination and erosion from combustion residue and exhaust particulates
- Sensing element reads the oxygen content of the exhaust gas to monitor the air-fuel ratio for combustion efficiency
- Electrodes made of a gas-permeable platinum layer
- Monitors exhaust gases and helps reduce pollutants
- Measures oxygen levels so the air-fuel mixture can be fine-tuned, which supports fuel economy
Quick facts
- Part: Walker Products 350-34190 oxygen sensor
- Fits: 1998-2004 Nissan Frontier 4-cylinder 2.4L and other vehicles
- Position: Downstream
- Condition: New
A failing oxygen sensor can show up as a rough-running engine, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. Before you replace this sensor, look over its wiring harness and connector for physical damage, since the same symptoms can start elsewhere. This listing is one sensor, and the downstream position on these engines gets just one.
Fits
It is a direct-fit Nissan Frontier oxygen sensor replacement for the 1998-2004 model with the 4-cylinder 2.4L, and it also fits the 1996-2001 Nissan Sentra 4-cylinder 2.0L, the 2005-2008 Nissan Urvan 4-cylinder 2.4L and the 2008-2013 Urvan 4-cylinder 2.5L. If your car is not named here, open the "Vehicles it fits" section to check your exact model and engine.
Specifications
Fit and size
- Position: Downstream
- Quantity per vehicle: 1
- Wires: 4
Build and materials
- Type: Narrow-band, direct fit
- Electrodes: gas-permeable platinum layer
- Condition: New
Interchange: CTK-OSNS4006
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this Nissan Sentra oxygen sensor right for a 1996-2001 4-cylinder 2.0L?
Yes, Walker Products 350-34190 fits the 1996-2001 Nissan Sentra 4-cylinder 2.0L, and that engine takes one. Open the "Vehicles it fits" section to check other models and engines.
Is this Nissan Frontier O2 sensor upstream or downstream on a 1998-2004 4-cylinder 2.4L?
Walker Products 350-34190 is a downstream sensor, and the 1998-2004 Nissan Frontier 4-cylinder 2.4L takes one.
Is this downstream oxygen sensor narrow-band, and how many wires does it have?
Yes, it is a narrow-band sensor with 4 wires, and it is a direct-fit unit.
What symptoms can a failing downstream oxygen sensor cause?
A failed sensor can make the engine run poorly, raise fuel consumption and exhaust emissions, or turn on the malfunction indicator light. Newer vehicles also store fault codes in the ECU that may relate to the sensor.
What does the coating on the Walker Products 350-34190 protect?
The coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases. The electrodes are made of a gas-permeable platinum layer.
