Walker Products 350-35043 oxygen sensor for the 2010-2012 Mazda CX-7 4-cylinder 2.5L measures oxygen in the exhaust gas to gauge combustion efficiency. The Walker Products oxygen sensor sits upstream and reports that reading to the ECU.
- Monitors exhaust gases and reduces pollutants for a cleaner environment
- Coating guards the electrode surfaces against contamination and erosion from combustion residue and particulates
- Electrodes with a gas-permeable platinum layer
- Oxygen readings help fine-tune the air-fuel ratio and improve fuel economy
- Wide-band, heated sensor with five wires
Quick facts
- Part: Walker Products 350-35043 oxygen sensor
- Fits: 2010-2012 Mazda CX-7 4-cylinder 2.5L
- Position: Upstream
- Condition: New
A failing sensor can show up as a rough-running engine, higher fuel use, more exhaust emissions or a check engine light. Those signs alone do not prove the sensor is the problem, since an exhaust leak can cause them too. With the engine off and cool, inspect the sensor, wiring harness and connector for physical damage.
Fits
This listing is one sensor for the 2010-2012 Mazda CX-7 with the L4-2.5L engine. The car takes one, mounted upstream.
Specifications
Fit and size
- Position: Upstream
- Quantity per vehicle: 1
- Wiring harness length: 500 mm
Build and materials
- Sensor type: Wide-band, heated
- Wires: 5
- Connector: square, female, with male spade terminals
- Mounting type: Threaded
- Grade: Standard replacement
- Condition: New
- Country of origin: Japan
Interchange: CTK-OSMA5002
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this the 2010-2012 Mazda CX-7 oxygen sensor for the 4-cylinder 2.5L?
Yes. Walker Products 350-35043 is listed for the 2010-2012 Mazda CX-7 4-cylinder 2.5L (L4-2.5L), and the car takes one.
Is this oxygen sensor wide-band and heated?
Yes. It is a wide-band, heated sensor with five wires.
What connector does this oxygen sensor have?
Walker Products 350-35043 has a square female connector with male spade terminals, a threaded mounting and a 500 mm wiring harness.
Is the 350-35043 an upstream or downstream oxygen sensor?
Upstream. Walker Products 350-35043 is cataloged for the upstream position.
Where should I look for damage on this oxygen sensor?
With the engine off and cool, look over the sensor body, its wiring harness and the connector for physical damage. A shop can test the sensor's signal.
