The oxygen sensor installs in the upstream position on 2004 Nissan Frontier, Xterra and 2010 Nissan Pickup. 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 350-33080 Oxygen Sensor Features:

• Fits 2004 Nissan Frontier, Xterra; 2010 Nissan Pickup
• Engine coverage includes 2.4L I4, 3.3L V6 applications
• Sensor location by application: B1S1 (bank and sensor number)
• 3-wire narrow-band oxygen sensor
• Built-in heater for fast warm-up
• M18x1.5 threaded mounting with a 22 mm hex, 325 mm (12.8 in.) overall length
• Female oblong connector at the harness end
• Platinum electrode layer with a protective coating against combustion residue