The oxygen sensor installs on select 1989-2016 Aston Martin, Ford, Jaguar, Lincoln and other 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 350-34414 Oxygen Sensor Features:

• Fits 2000-2004 Aston Martin DB7, Ford Focus; 2002-2006 Aston Martin Vanquish; 2005-2007 Aston Martin DB9, Ford Five Hundred, Freestyle, Mercury Montego
• Fits 1989-2012 Ford Ranger; 1990-1996 Ford Bronco; 1990-2008 Ford E-150 Econoline; 1990-2002 Ford E-150 Econoline Club Wagon, E-250 Econoline
• Also fits select Aston Martin, Ford, Jaguar, Lincoln, Mazda and Mercury applications
• Sensor locations by application: B1S1, B1S2, B1S3, B2S1, B2S2 (bank and sensor number)
• Used in the center positions, depending on application
• 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
• Male circle connector at the harness end
• Platinum electrode layer with a protective coating against combustion residue