This Upstream O2 Oxygen Sensor is a high-quality replacement part for your 2005-2006 Nissan Pathfinder 4.0L. It is designed to fit directly into your vehicle's system and is compatible with various part numbers such as 226936M400 and 234-5060. This sensor type is an Oxygen Sensor and is manufactured by Mostparts. The sensor comes with a 2-year manufacturer warranty and is perfect for those looking for a direct replacement for their faulty or damaged oxygen sensor. It is a single-sensor component with a fitment type of Direct Replacement and has an upstream placement on the vehicle. This product is an ideal choice for those who are looking for a reliable and cost-effective option to keep their vehicle running smoothly. New no box item