The 4-wire narrow-band oxygen sensor is a replacement sensor for select 1991-1999 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 350-34232 Oxygen Sensor Features:

• Fits 1991-1995 Dodge Stealth, Mitsubishi 3000GT; 1993 Eagle Summit, Plymouth Colt; 1995-1998 Eagle Talon; 1992-1994 Mitsubishi Diamante; 1995-1999 Mitsubishi Eclipse
• Engine coverage includes 2.0L I4, 2.4L I4, 3.0L V6 applications
• Sensor location by application: 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, 385 mm (15.2 in.) overall length
• Male rectangle connector at the harness end
• Platinum electrode layer with a protective coating against combustion residue