Walker Products 350-33093 oxygen sensor for the 1988 BMW 325 6-cylinder 2.7L and other vehicles measures exhaust-gas oxygen to show combustion efficiency. This Walker Products oxygen sensor is a 3-W direct-fit, narrow-band design for the upstream position.
- Made for its specific application and position, with the diagnostic feedback the ECU needs
- Monitors exhaust gases and reduces pollutants for a cleaner environment
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and exhaust particulates
- Electrodes coated with a gas-permeable platinum layer
- Measures oxygen levels so the air-fuel mixture can be fine-tuned for fuel economy
Quick facts
- Part: Walker Products 350-33093 oxygen sensor
- Fits: 1988 BMW 325 6-cylinder 2.7L and other vehicles
- Position: Upstream
- Condition: New
A failing oxygen sensor can make the engine run poorly, raise fuel consumption and exhaust emissions, or switch on the malfunction indicator light. A vacuum leak can also make an engine run rough and burn more fuel, so the sensor may not be the culprit. With the engine off and cool, look over the sensor, wiring harness and connector for physical damage.
Fits
Fitment includes the 1988 BMW 325 6-cylinder 2.7L, the 1984-1987 BMW 325e 6-cylinder 2.7L and the 1986-1987 BMW 325es 6-cylinder 2.7L, along with other BMW models. A 1988 BMW 325 6-cylinder 2.7L takes one. If your BMW is not named here, look up its year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Upstream
- Quantity per vehicle: 1
Build and materials
- Type: Narrow-band, direct fit
- Wiring: 3-W
- Electrodes: gas-permeable platinum layer
- Condition: New
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this BMW 325 oxygen sensor the right one for a 1988 BMW 325 6-cylinder 2.7L?
Yes. Walker Products 350-33093 fits the 1988 BMW 325 6-cylinder 2.7L, and the car takes one upstream sensor.
Is the Walker Products 350-33093 a narrow-band or wideband sensor?
Narrow-band. The Walker Products 350-33093 is a 3-W direct-fit narrow-band sensor made for the upstream position.
What is the coating on this oxygen sensor for?
The coating keeps combustion residue and exhaust particulates from contaminating or eroding the electrode surfaces. The electrodes themselves are a gas-permeable platinum layer.
Will a worn oxygen sensor store a fault code?
On newer vehicles, a failing sensor can store a fault code in the ECU that relates to the sensor and its systems. A shop scan can read it.
Is this oxygen sensor upstream or downstream?
Upstream. Walker Products 350-33093 is listed for the upstream position and sold as a single sensor.
