Walker 350-341008 Oxygen Sensor - Downstream Left

Walker Oxygen Sensor for Ford Transit

Walker Products 350-341008 is a specific-fit heated oxygen sensor for select Ford Transit vans. It is built for the downstream left position and provides the ECU with the feedback needed to monitor exhaust system performance and fuel control.

Key Features

• Specific-fit heated oxygen sensor for direct application matching
• Downstream left position for bank 2 sensor 2 service needs
• 4-wire design with 20-gauge wiring
• Radiused polygon female connector for vehicle-specific connection
• Threaded mounting with 18.0 mm thread diameter
• Overall length: 10.82 in.; wiring harness length: 7.87 in.

Product Details

Walker Products Aftermarket focuses on OE-style engine management and oxygen/air-fuel sensors engineered for application-specific fitment and ECU feedback. Part number 350-341008 is made for the downstream left oxygen sensor location on select 2016-2019 Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD models. For Ford Transit van service, this sensor supports accurate exhaust monitoring where the original sensor has failed or is no longer reporting correctly.

This part cross-references no listed interchange numbers in the provided data. Walker Products 350-341008 is a direct-fit replacement for the specified Ford Transit applications and is built around the required mounting position, connector style, and sensor configuration.

Common Issues This Sensor Can Address

• Check engine light related to downstream oxygen sensor faults
• Poor fuel economy caused by incorrect exhaust feedback
• Rough engine operation tied to inaccurate sensor readings
• Elevated exhaust emissions from a failing oxygen sensor
• Diagnostic trouble codes stored for bank 2 sensor 2 circuits

Installation Notes

Before installation, inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion. Confirm the downstream left location and verify the threaded mounting point and connector shape match the original part on the Ford Transit. If the vehicle has stored fault codes, clear them after installation and confirm the repair with a scan tool.

Quality Assurance

Walker Products has supplied engine management and fuel system components since 1946 and manufactures sensors to support the diagnostic requirements of modern ECUs. The company is ISO 9001/TS 16949 certified, with production focused on application-specific replacement parts for Ford Transit oxygen sensor service.