The 4-wire narrow-band oxygen sensor is a replacement sensor for select 1994-2019 Dodge, Eagle and Mitsubishi 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 350-34237 Oxygen Sensor Features:

• Fits 1994-1996 Dodge Stealth; 1995-1996 Eagle Summit, Mitsubishi Mirage; 1994-1999 Mitsubishi 3000GT; 1994-2004 Mitsubishi Diamante; 1994-2019 Mitsubishi Montero
• Fits 1995 Mitsubishi Expo; 1997-2015 Mitsubishi Montero Sport
• Engine coverage includes 1.8L I4, 2.4L I4, 3.0L V6, 3.5L V6, 3.8L V6 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, 675 mm (26.6 in.) overall length
• Male square connector at the harness end
• Platinum electrode layer with a protective coating against combustion residue