Walker Products 350-34028 oxygen sensor for the 2007-2011 Ford Focus 4-cylinder 2.0L and other vehicles senses the oxygen content of the exhaust gas. This upstream, narrow-band sensor is made for its specific application and fitment position, and it gives the ECU the diagnostic feedback it requires.
- Monitors exhaust gases and reduces pollutants
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Oxygen readings help fine-tune the air-fuel mixture and support fuel economy
- Electrodes made of a gas-permeable platinum layer
- Monitors the air-fuel ratio for combustion efficiency
Quick facts
- Part: Walker Products 350-34028 oxygen sensor
- Fits: 2007-2011 Ford Focus 4-cylinder 2.0L and other vehicles
- Position: Upstream
- Condition: New
A failing sensor can make the engine run poorly, raise fuel consumption or exhaust emissions, or turn on the malfunction indicator light. Those signs can come from other faults too, so with the engine off and cool, look the sensor, wiring harness and connector over for physical damage first.
Fits
This oxygen sensor fits the 2007-2011 Ford Focus 4-cylinder 2.0L, the 2009-2015 Ford EcoSport 4-cylinder 2.0L and the 2010-2013 Ford Transit Connect 4-cylinder 2.0L. The listing is one upstream sensor, and the quantity is one per vehicle.
Specifications
Fit and size
- Position: Upstream
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
- Number of wires: 4
Build and materials
- Type: narrow-band, direct fit
- Electrodes: gas-permeable platinum layer
- Condition: New
Interchange: CTK-OSFD4016
Frequently Asked Questions
Is this the right oxygen sensor for a 2007 Ford Focus 4-cylinder 2.0L?
Yes. Walker Products 350-34028 is an upstream oxygen sensor for the 2007-2011 Ford Focus 4-cylinder 2.0L, and the car takes one.
Is this oxygen sensor narrow-band or wideband?
It is narrow-band. This Walker Products 350-34028 sensor has 4 wires and an M18 - 1.5 thread.
Is this Walker Products oxygen sensor an upstream or downstream sensor?
Upstream. This sensor is made for the upstream position, and the listing is a single sensor.
What are the electrodes on this oxygen sensor made of?
The electrodes are made of a gas-permeable platinum layer. A coating keeps combustion residue and particulates in the exhaust gas from contaminating or eroding the electrode surfaces.
Is CTK-OSFD4016 a cross-reference for this oxygen sensor?
Yes. CTK-OSFD4016 is listed as an interchange number for this oxygen sensor, Walker Products 350-34028.
