The oxygen sensor installs in the downstream position on select 2018-2025 Ford applications. It signals whether the exhaust is running rich or lean so the engine computer can trim fuel delivery. A built-in heater brings the element to operating temperature quickly after a cold start.

Walker Products 350-341073 Oxygen Sensor Features:

• Fits 2018-2024 Ford Mustang; 2020-2023 Ford Explorer; 2020-2024 Ford Police Interceptor Utility; 2020-2022 Ford Transit; 2020-2025 Ford Transit-350, Transit-350 HD
• Fits 2021-2022 Ford Transit Connect; 2021-2025 Ford Transit-150; 2022-2025 Ford Transit-250
• Engine coverage includes 2.5L I4, 3.3L V6, 3.5L V6, 5.0L V8 applications
• Sensor locations by application: B1S2, B2S2 (bank and sensor number)
• 4-wire narrow-band oxygen sensor
• Built-in heater for fast warm-up
• M18x1.5 threaded mounting with a 22 mm hex, 600 mm (23.6 in.) overall length
• Female oblong connector at the harness end with 4 spade terminals
• Platinum electrode layer with a protective coating against combustion residue