Walker Products Oxygen Sensor P/N:250-21051
Walker Products 250-25091 oxygen sensor for the 2019-2023 Mercedes-Benz Sprinter 4500 V6 3.0L and other vehicles measures the oxygen in the exhaust gas to show how completely the engine burns its fuel. This wide-band sensor sends the ECU the feedback it needs from the exhaust.
A worn or failing sensor can show up as rough running, higher fuel consumption or a malfunction indicator light. A damaged wiring harness or connector can also be behind those signs, so inspect both for physical damage before you replace the sensor.
The 2019-2023 Mercedes-Benz Sprinter 4500 V6 3.0L, the 2018-2022 Mercedes-Benz Sprinter 2500 V6 3.0L and the 2018-2022 Mercedes-Benz Sprinter 3500 V6 3.0L are among the vehicles this sensor fits, and each takes one. This listing is a single sensor. Driving something else? Enter your year and engine in the "Vehicles it fits" section to see whether it is covered.
Fit and size
Build and materials
Does the Walker Products 250-25091 oxygen sensor fit the 2019-2023 Mercedes-Benz Sprinter 4500 V6 3.0L?
Yes. Walker Products 250-25091 fits the 2019-2023 Mercedes-Benz Sprinter 4500 V6 3.0L, which takes one sensor. For a different vehicle, look it up in the "Vehicles it fits" section.
What thread size does this oxygen sensor have?
This oxygen sensor has an M18 - 1.5 thread.
Is this a wide-band oxygen sensor?
Yes. Walker Products 250-25091 is a wide-band sensor, and its electrodes are made of a gas-permeable platinum layer.
Can a worn oxygen sensor raise fuel consumption?
Yes, it can. A failing sensor may make the engine run poorly, use more fuel or turn on the malfunction indicator light. A shop can read the stored fault codes to find the cause.
What does the coating on this oxygen sensor protect against?
The coating prevents contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust gases.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.