Keep your engine's air-fuel ratio dialed in with the Walker Products Oxygen Sensor 350-34213. It measures the oxygen content in the exhaust stream and reports that reading to the powertrain control module, which uses the signal to trim fuel delivery and keep combustion in closed-loop control. It installs as a direct-fit replacement across a broad range of Chrysler, Dodge, Jeep, Ram, Fiat, and Mercedes-Benz applications, including the 2011-2020 Dodge Grand Caravan, 2014-2023 Jeep Cherokee, 2017-2024 Chrysler Pacifica, 2011-2023 Dodge Charger, 2011-2023 Dodge Challenger, and 2014-2021 Ram ProMaster 1500 — see the Buyer's Guide tab for the full list of 97 applications.
Interchange: CTK-OSCH4017 · CTKOSCH4017
Manufacturer part number 350-34213 (also 35034213)
This part cross-references / interchanges with the following part numbers:
What does the Walker Products 350-34213 oxygen sensor do?
It measures the oxygen content in the exhaust and sends that signal to the PCM, which adjusts fuel delivery to keep the air-fuel ratio within range for closed-loop control.
Will this oxygen sensor fit my vehicle?
It is a direct-fit replacement for 97 Chrysler, Dodge, Jeep, Ram, Fiat, and Mercedes-Benz applications, such as the 2014-2023 Jeep Cherokee and 2017-2024 Chrysler Pacifica. Check the Buyer's Guide tab for the full list.
Is this an upstream or downstream sensor?
Depending on the application, this sensor is cataloged for an upstream or downstream position. Check the Buyer's Guide tab for the position that matches your vehicle.
What are signs my oxygen sensor may need replacing?
A check engine light, reduced fuel economy, or a rough idle can point to a worn sensor, but diagnose the cause first since these symptoms can have other sources.
What numbers does this sensor interchange with?
It cross-references CTK-OSCH4017 (also listed compactly as CTKOSCH4017). Its own manufacturer part number is Walker Products 350-34213.
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.