The 4-wire narrow-band oxygen sensor is a replacement sensor for select 1993-2003 Dodge, Eagle, Mitsubishi and Plymouth 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 350-34366 Oxygen Sensor Features:

• Fits 1993-1994 Dodge Colt, Plymouth Colt; 1993-1996 Eagle Summit; 1993-2000 Mitsubishi Mirage; 2000 Mitsubishi Eclipse; 2003 Mitsubishi Outlander
• Engine coverage includes 1.5L I4, 1.8L I4, 2.4L I4, 3.0L V6 applications
• Sensor locations by application: B1S1, B1S2, B1S3 (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, 610 mm (24 in.) overall length
• Male rectangle connector at the harness end
• Platinum electrode layer with a protective coating against combustion residue