Enhance the performance of your Toyota Sequoia Tundra or Lexus LX470 with this high-quality oxygen sensor from Kwiksen. It comes in a package of 2x upstream and 2x downstream sensors, ensuring accurate and reliable oxygen readings. This direct replacement sensor is compatible with 1998-2002 models and has a lifetime manufacturer warranty. The sensor is designed for easy installation and is wired for a direct fit. It is calibrated to ensure optimal performance and is suitable for both upstream and downstream placement on the vehicle. The part number for this sensor is 8946509170, 8946539655, 8946539885, 8946580011, and the OE/OEM part numbers are 234-4154 and 234-4169. This oxygen sensor is a must-have for any car or truck owner who wants to maintain the performance of their vehicle.