The oxygen sensor installs on select 1999-2014 Bentley, Seat and Volkswagen 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 350-34377 Oxygen Sensor Features:

• Fits 2003-2004 Bentley Arnage; 2001-2002 Seat Cordoba, Ibiza; 1999-2011 Volkswagen Beetle; 1999-2007 Volkswagen Golf; 1999-2006 Volkswagen Jetta; 2006 Volkswagen Bora
• Fits 2007-2010 Volkswagen Golf City; 2007-2009 Volkswagen Jetta City; 2010 Volkswagen Beetle Cabrio, GLI; 2014 Volkswagen Combi
• Engine coverage includes 1.4L I4, 1.6L I4, 1.8L I4, 2.0L I4, 2.5L I5, 6.8L V8 applications
• Sensor locations by application: B1S1, B1S2, B1S3 (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, 500 mm (19.7 in.) overall length
• Male square connector at the harness end
• Platinum electrode layer with a protective coating against combustion residue