Upgrade your Ford Explorer with our premium quality replacement front oxygen O2 sensors, designed specifically for the 1997 - 2001 models featuring a 4.0L OHV engine. This set includes two sensors for both the left and right-hand side, ensuring optimal performance for your manual vehicle. Enjoy peace of mind with a 2-year Australian warranty, making this a reliable choice for your car's needs. Enhance your vehicle's efficiency and drive with confidence!