Kwiksen Oxygen O2 Sensor 234-4080 Downstream For 2001-2004 Chevrolet Tracker 2.5L CONTACT US via Amazon Messaging with any fitment issues or check this item description before you placing orders will help to purchase the correct product Guaranteed Direct Fit For Easy Installation and Great Performance at a Low Price Improved protection tube and increased thermal resistance prevents premature sensor failure and long warranty This is Brand New & High Quality Aftermarket Product service with Laser weld and Viton sealing system Meet the professtional specification as OEM parts, for stable performance & durable