Dealing with check engine lights or poor fuel economy on your Lexus or Toyota? This Germban upstream air fuel ratio sensor might be your solution. It's a direct replacement for part number 89467-30010 and fits a ton of models including Lexus IS250/350, GS300/350/450h, LS460/600h, GX470, LX470, and Toyota 4Runner, FJ Cruiser, Land Cruiser, Sequoia, and Tundra from around 2005-2013 depending on the specific model. This 4-wire heated sensor plays a crucial role in your engine's performance by monitoring oxygen levels in the exhaust and helping the computer adjust the air-fuel mixture for optimal combustion. When these sensors go bad, you can experience rough idling, poor gas mileage, and failed emissions tests. The 8.66 inch wire harness gives you enough length for proper installation, and the construction meets OEM standards for reliability. Germban includes a 2-year warranty and tests every sensor before shipping, so you can feel confident in the quality. Before ordering, definitely verify this matches your old sensor's part number and connector type. Installation is usually straightforward if you have basic mechanical skills - just remember to let the exhaust cool completely first! This is one of those maintenance items that can actually save you money on fuel while keeping your vehicle running smoothly.