This 4-wire narrow-band oxygen sensor fits 2011-2014 Ford F-150, Lobo, Lincoln Mark LT and 2016-2021 Ford Figo in the downstream position and 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 350-34254 Oxygen Sensor Features:

• Fits 2011-2014 Ford F-150, Lobo, Lincoln Mark LT; 2016-2021 Ford Figo
• Engine coverage includes 1.5L I4, 1.5L I3, 5.0L V8, 6.2L V8 applications
• 4-wire narrow-band oxygen sensor
• Built-in heater for fast warm-up
• M18x1.5 threaded mounting with a 22 mm hex, 400 mm (15.7 in.) overall length
• Female circle connector at the harness end
• Platinum electrode layer with a protective coating against combustion residue