Walker Products 350-34644 oxygen sensor for the 2002-2007 Mitsubishi Lancer 4-cylinder 2.0L and other vehicles measures combustion efficiency from the amount of oxygen in the exhaust gas. This Walker Products oxygen sensor is a 4-W direct-fit narrow-band unit made for its specific application and fitted position.
- Monitors the air-fuel ratio in the exhaust gas
- Monitors exhaust gases to help reduce pollutants
- Electrodes made of a gas-permeable platinum layer
- Oxygen readings let the air-fuel mixture be fine-tuned to improve fuel economy
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
Quick facts
- Part: Walker Products 350-34644 oxygen sensor
- Fits: 2002-2007 Mitsubishi Lancer 4-cylinder 2.0L and other vehicles
- Position: upstream, downstream, upstream rear, upstream front, downstream front, downstream rear
- Condition: New
A worn oxygen sensor can mean rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light, but a damaged wiring harness or connector can be behind those signs too, so inspect both before you replace the sensor.
Fits
It is an O2 sensor for the 2002-2007 Mitsubishi Lancer 4-cylinder 2.0L and also fits the 2003 Mitsubishi Outlander 4-cylinder 2.4L, the 1995-1999 Mitsubishi Eclipse 4-cylinder 2.0L, the 1996-2000 Eclipse 4-cylinder 2.4L and the 2000 Eclipse V6 3.0L. This listing is a single sensor, and the fitment calls for one. Other vehicles are in the "Vehicles it fits" section, so look up your own car there.
Specifications
Fit and size
- Position: upstream, downstream, upstream rear, upstream front, downstream front, downstream rear
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
Build and materials
- Type: narrow-band
- Wiring: 4-wire
- Electrodes: gas-permeable platinum layer
- Condition: New
Interchange: CTK-OSMI4006
Frequently Asked Questions
Is this the right Mitsubishi Outlander oxygen sensor for a 2003 Outlander 4-cylinder 2.4L?
Yes, Walker Products 350-34644 fits the 2003 Mitsubishi Outlander 4-cylinder 2.4L, one sensor per vehicle. For another car, look it up in the "Vehicles it fits" section.
Is this the Mitsubishi Eclipse oxygen sensor for a 1995-1999 Eclipse 4-cylinder 2.0L?
Yes. This sensor also fits the 1996-2000 Eclipse 4-cylinder 2.4L and the 2000 Eclipse V6 3.0L, with one sensor in each application.
Is the Walker Products 350-34644 a narrow-band or wideband oxygen sensor?
Walker Products 350-34644 is a narrow-band sensor. It is a 4-W direct-fit unit with electrodes made of a gas-permeable platinum layer.
Can a failing oxygen sensor turn on the check engine light?
Yes. A failed sensor can light the malfunction indicator light, and newer vehicles store fault codes in the ECU, some of which relate to the sensor and its systems.
Does the Walker Products 350-34644 replace CTK-OSMI4006?
Yes. CTK-OSMI4006 is a listed interchange number for this oxygen sensor.
