Walker 350-341069 Oxygen Sensor - Downstream

Walker 350-341069 Oxygen Sensor for Fusion

Walker Products 350-341069 is a heated oxygen sensor built as a specific-fit OE replacement for downstream applications. It is engineered to provide the ECU with the feedback needed for fuel control and emissions monitoring on select Ford Fusion models.

Key Features

• Specific-fit heated oxygen sensor for downstream placement
• 4-wire design with female connector
• 18.00 mm thread diameter
• 15.28 in. wiring harness length
• 22-gauge wire construction
• Overall length: 18.82 in.
• Fits 2017-2020 Ford Fusion, downstream bank 1 sensor 2 on specific vehicle models

Product Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors engineered for OE-style replacement use. Part number 350-341069 is made for the specified application and fitment position, helping restore the diagnostic feedback the ECU expects from the downstream sensor circuit. This part number 350-341069 is listed for 2017-2020 Ford Fusion downstream applications, including downstream bank 1 sensor 2 on specific vehicle models.

Walker Products has supplied engine management and fuel system components since 1946, and its sensor line is built around application-specific fitment rather than universal coverage. For buyers searching for a Ford Fusion downstream oxygen sensor, Walker 350-341069 provides the correct connector style, thread size, and harness configuration for the listed vehicle fitment.

What It Helps Address

• Check engine light related to downstream oxygen sensor performance
• Poor fuel economy caused by inaccurate exhaust feedback
• Elevated exhaust emissions from a failing sensor
• Rough engine operation tied to sensor signal issues
• Stored ECU fault codes for the affected sensor circuit

Installation Notes and Tips

Before replacement, inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion. Confirm downstream bank and sensor position against the vehicle service information before installation. Verify thread diameter and connector style match the original part, and clear diagnostic trouble codes after repair if required by the vehicle.

Quality Assurance

Walker Products manufactures this oxygen sensor as an OE-style replacement for the listed application and builds its engine management components under ISO 9001/TS 16949 quality systems.