The NGK direct-fit oxygen sensor for Chevrolet Tracker (2001–2003) replaces the factory unit to supply continuous closed-loop air-fuel feedback to the engine control unit, aiding correct mixture control, fuel efficiency and emissions management. Backed by NTK sensor development, the design uses an advanced ceramic element with a 3-stage contaminant-resistant plasma jet and deposit-trap overcoat to protect against element poisoning and improve sensor longevity.
NGK Chevrolet Tracker 2003-2001 Direct Fit Oxygen Sensor