Walker 350-341058 Oxygen Sensor - Downstream

Walker 350-341058 Oxygen Sensor Overview

Walker Products 350-341058 is a heated oxygen sensor built as an OE-style replacement for specific downstream applications. It is engineered for direct fitment on select Ford EcoSport and Ford Escape models, with the correct connector, wire count, and sensor configuration for the intended ECU feedback.

For drivers diagnosing a check engine light, poor fuel economy, or elevated emissions, this Walker Products Aftermarket oxygen sensor is designed to restore accurate exhaust monitoring on the affected vehicle application.

Key Features

• Heated oxygen sensor for downstream exhaust monitoring
• Specific-fit design for the listed Ford applications
• 4-wire configuration with male connector
• 35.94 in. wiring harness length
• 18.00 mm thread diameter
• Overall length: 39.49 in.
• Walker Products 350-341058 is built for the intended sensor location and ECU feedback requirements

Application Details

Fits 2018-2021 Ford EcoSport, downstream bank 1 sensor 2. Fits 2017-2019 Ford Escape, downstream bank 1 sensor 2. This part number, 350-341058, is a direct-fit oxygen sensor for those specific vehicle and position combinations, making it a practical choice when replacing a failed downstream sensor on a Ford EcoSport or Ford Escape.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors developed as OE replacement parts for global vehicle applications. The 350-341058 follows that approach with application-specific fitment, wiring, and connector design to match the original sensor location.

What It Helps Address

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

Installation Notes

Before replacement, inspect the sensor wiring harness and connector for heat damage, corrosion, or physical wear. Confirm the vehicle’s downstream bank 1 sensor 2 location before ordering, since this part is specific to the listed Ford EcoSport and Ford Escape applications. Use the correct thread engagement and connector routing for the exhaust layout on the vehicle.

Quality Assurance

Walker Products has produced engine management components since 1946 and operates as an ISO 9001 / TS 16949 certified company. The 350-341058 is manufactured for the specified application and position to support the ECU feedback expected from the original sensor design.