The oxygen sensor installs in the downstream position on select 2005-2012 Jaguar 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 350-34299 Oxygen Sensor Features:

• Fits 2005-2009 Jaguar XJ8, XJR; 2006-2008 Jaguar S-Type; 2006-2009 Jaguar Super V8, Vanden Plas; 2007-2009 Jaguar XK, XKR; 2009-2012 Jaguar XF; 2010-2011 Jaguar XFR
• Engine coverage includes 3.0L V6, 4.2L V8, 5.0L V8 applications
• 4-wire narrow-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