Enhance your Ford Explorer's performance with our Rear Oxygen O2 Sensor, specifically designed for models from 2003 to 2005 with a 4.0 SOHC engine. This premium quality replacement part ensures optimal fuel efficiency and reduced emissions. Backed by a 2-year Australian warranty, you can trust in its durability and reliability. Perfectly suited for your vehicle, this sensor is a smart investment for maintaining your SUV's health. Upgrade today for a smoother, more efficient ride.