The oxygen sensor installs in the upstream position on select 2014-2020 Ford applications. It measures the exhaust air-fuel ratio across a broad range so the engine computer can meter fuel precisely. A built-in heater brings the element to operating temperature quickly after a cold start.

Walker Products 350-35145 Oxygen Sensor Features:

• Fits 2014-2016 Ford Escape, Fusion; 2014-2018 Ford Transit Connect; 2015-2017 Ford F-150, Lobo; 2015-2019 Ford F-59 Commercial Stripped Chassis; 2015-2020 Ford Mustang
• Fits 2015-2016 Ford Ranger; 2016-2019 Ford E-350 Super Duty, E-450 Super Duty, F-53 Motorhome Chassis, Transit, Transit-150, Transit-250, Transit-350, Transit-350 HD
• Also fits select Ford applications
• Sensor locations by application: B1S1, B2S1 (bank and sensor number)
• 5-wire wide-band oxygen sensor
• Built-in heater for fast warm-up
• M18x1.5 threaded mounting with a 22 mm hex, 500 mm (19.7 in.) overall length
• Female square connector at the harness end
• Platinum electrode layer with a protective coating against combustion residue