Walker Products 250-25133 oxygen sensor for the 2016-2019 BMW 750i xDrive V8 4.4L and other vehicles reads how much oxygen is in the exhaust gas. This Walker Products oxygen sensor is made for its specific application and fitment position, and it gives the ECU the diagnostic feedback it needs.
- Monitors exhaust gases to help reduce pollutants
- Electrodes made of a gas-permeable platinum layer
- Monitors the air-fuel ratio for combustion efficiency
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Measures oxygen levels to help fine-tune the air-fuel mixture for fuel economy
Quick facts
- Part: Walker Products 250-25133 oxygen sensor
- Fits: 2016-2019 BMW 750i xDrive V8 4.4L and other vehicles
- Position: Upstream left, upstream right
- Condition: New
A failing oxygen sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light, though other faults can trigger the same signs. With the engine off and cool, look over the sensor, its wiring harness and the connector for physical damage before you replace anything.
Fits
The 2016-2019 BMW 750i xDrive V8 4.4L, the 2017-2019 BMW 750i V8 4.4L and the 2017-2019 BMW Alpina B7 V8 4.4L are among the vehicles this oxygen sensor fits. If your BMW is not one of these, look up your own year and engine in the "Vehicles it fits" section. This listing is one sensor, and the 2016-2019 BMW 750i xDrive V8 4.4L takes one.
Specifications
Fit and size
- Position: upstream left, upstream right
- Quantity per vehicle: 1
Build and materials
- Electrodes: gas-permeable platinum layer
- Condition: New
Frequently Asked Questions
Will the Walker Products 250-25133 fit the 2017-2019 BMW 750i V8 4.4L?
Yes. Walker Products 250-25133 fits the 2017-2019 BMW 750i V8 4.4L. The fitment lists the V8-4.4L engine and a quantity of one.
Is this oxygen sensor for the upstream left or the upstream right position?
This part number is listed for both the upstream left and the upstream right positions, and this listing is one sensor.
Does the 2017-2019 BMW Alpina B7 V8 4.4L take this oxygen sensor?
Yes. Walker Products 250-25133 fits the 2017-2019 BMW Alpina B7 V8 4.4L, listed with the V8-4.4L engine and a quantity of one.
Could rough running or a lit warning light mean this oxygen sensor is failing?
It can. A failing sensor may cause rough running, higher fuel consumption, more exhaust emissions or a malfunction indicator light, and newer vehicles may also store a related fault code in the ECU.
What does the coating on this oxygen sensor do?
Walker Products 250-25133 has electrodes made of a gas-permeable platinum layer, and its coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates.
