Walker Products 350-34237 oxygen sensor for the 1994-2002 Mitsubishi Montero V6 3.5L, the 1995-1996 Montero V6 3.0L, the 2003-2006 Montero V6 3.8L and other vehicles measures the oxygen in the exhaust gas to show how efficiently the engine is burning fuel. This Walker Products oxygen sensor is made for its specific application and fitment position, and it returns the diagnostic feedback the ECU expects.
- Narrow-band design with 4 wires and a direct fit
- Monitors exhaust gases and reduces pollutants
- Electrodes made of a gas-permeable platinum layer
- Measures oxygen levels so the air-fuel mixture can be fine-tuned for fuel economy
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
Quick facts
- Part: Walker Products 350-34237 oxygen sensor
- Fits: the 1994-2002 Mitsubishi Montero V6 3.5L, the 1995-1996 Montero V6 3.0L, the 2003-2006 Montero V6 3.8L and other vehicles
- Position: Upstream or downstream, depending on the application
- Condition: New
A failing oxygen sensor can show up as rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light. Before you replace the sensor, look over the wiring harness and connector for physical damage with the engine off, and rule out other causes of the symptom.
Fits
This narrow-band oxygen sensor also fits the 1997-1999 Mitsubishi Montero Sport 4-cylinder 2.4L, the 1997-2003 Montero Sport V6 3.0L, the 1999-2011 Montero Sport V6 3.5L, the 2012-2015 Montero Sport V6 3.0L and the 1999-2004 Mitsubishi Diamante V6 3.5L.
Specifications
Fit and size
- Position: upstream or downstream, depending on the application
- Quantity per vehicle: 1
- Thread: M18 - 1.5
- Number of wires: 4
Build and materials
- Type: narrow-band, direct fit
- Electrodes: gas-permeable platinum layer
- Condition: New
In the box
This listing is one oxygen sensor, and the fitment lists a quantity of one.
Frequently Asked Questions
Is this the right Montero oxygen sensor for a 1994-2002 Mitsubishi Montero V6 3.5L?
Yes. Walker Products 350-34237 fits the 1994-2002 Mitsubishi Montero V6 3.5L, the 1995-1996 Montero V6 3.0L and the 2003-2006 Montero V6 3.8L. Check your own car's year and engine in the "Vehicles it fits" section.
Is the Walker Products 350-34237 a narrow-band or wideband oxygen sensor?
Walker Products 350-34237 is a narrow-band oxygen sensor with 4 wires and an M18 - 1.5 thread.
Is the Walker Products 350-34237 an upstream or downstream sensor?
The catalog lists this number for both upstream and downstream positions, depending on the vehicle. Walker Products makes each part number for its specific application and fitment position.
Will a worn oxygen sensor set a check engine light?
Yes, it can. Newer vehicles store fault codes in the ECU, and some relate to the sensor and its systems. A shop can read those codes, and the malfunction indicator light may come on.
What does the coating on this oxygen sensor's electrodes do?
It keeps combustion residue and particulates in the exhaust gases from contaminating or eroding the electrode surfaces. Those electrodes are made of a gas-permeable platinum layer.
