The 4-wire narrow-band oxygen sensor is a replacement sensor for select 1995-2002 Chrysler, Ram, Dodge, Jeep 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 350-34511 Oxygen Sensor Features:

• Fits 1996-2000 Chrysler Sebring, Voyager, Ram 2500 Van, Plymouth Voyager
• Fits 1997-2000 Chrysler Cirrus, Dodge Caravan, Ram 3500 Van, Dodge Stratus, Jeep TJ, Wrangler, Plymouth Breeze; 1995-2002 Ram 1500; 1995-2000 Ram 1500 Van
• Also fits select Chrysler, Ram, Dodge, Jeep and Plymouth applications
• Sensor locations by application: B1S1, B1S2 (bank and sensor number)
• Used in both upstream and downstream 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, 475 mm (18.7 in.) overall length
• Female square connector at the harness end
• Platinum electrode layer with a protective coating against combustion residue