This 1-wire narrow-band oxygen sensor fits 1979 Volkswagen Transporter and 1980-1983 Volkswagen Vanagon in the upstream position and signals whether the exhaust is running rich or lean so the engine computer can trim fuel delivery.

Walker Products 350-31014 Oxygen Sensor Features:

• Fits 1979 Volkswagen Transporter; 1980-1983 Volkswagen Vanagon
• Engine coverage includes 1.9L H4, 2.0L H4 applications
• Sensor location by application: B1S1 (bank and sensor number)
• 1-wire narrow-band oxygen sensor
• Unheated design
• M18x1.5 threaded mounting with a 22 mm hex, 480 mm (18.9 in.) overall length
• Female rectangle connector at the harness end
• Platinum electrode layer with a protective coating against combustion residue