This 5-wire wide-band oxygen sensor fits select 2007-2026 Audi, Chevy, Ram, Fiat and other applications and 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 350-35040 Oxygen Sensor Features:

• Fits 2017-2023 Audi R8; 2008-2010 Chevy Cobalt, HHR; 2008 Ram 2500; 2011-2015 Fiat Ducato, Ford E-350, E-450 Super Duty
• Fits 2011 Ford E-150, E-250, Expedition, F-150, Ram 3500; 2011-2014 Ford Econoline Van, Wagon, Lincoln Mark LT; 2011-2016 Ford F-250, F-350 Super Duty
• Also fits select Audi, Chevy, Ram, Fiat, Ford, Genesis, Honda, Hyundai, Kia, Land Rover, Lincoln, Peugeot, Pontiac, Porsche, Saturn and Volkswagen applications
• Sensor locations by application: B1S1, B1S2, B2S1 (bank and sensor number)
• Used in both upstream and downstream positions, depending on application
• 5-wire wide-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 square connector at the harness end
• Platinum electrode layer with a protective coating against combustion residue