Jaguar owners with check engine lights? This Automotive-leader 234-9125 upstream air fuel ratio sensor might be your solution! This 4-wire heated sensor is a direct fit replacement for multiple Jaguar models including 2009-2011 XF (5.0L, 4.2L), 2010-2011 XFR (5.0L V8), 2006-2009 Super-V8 (4.2L V8), XJ8, XK, XJR, XKR, S-Type, Vanden Plas, and XK8. With an 11.89-inch wire harness, installation is straightforward for most mechanics. The heated design improves fuel efficiency and provides stable performance in various driving conditions. This sensor interchanges with multiple part numbers including 2349125, C2C22681, C2P8810, and others, so you know it's compatible with your vehicle's system. Each unit undergoes rigorous testing before shipping to ensure reliability. Backed by a 2-year warranty and solid customer support, you can install this with confidence. If you're experiencing poor fuel economy, rough idling, or that annoying check engine light related to air/fuel mixture issues, this quality replacement sensor can get your Jaguar running smoothly again. The construction is durable and built to handle the demands of luxury vehicle performance. Whether you're a DIY enthusiast or professional mechanic, having the right sensor is crucial for proper engine operation and emissions control. This direct-fit sensor makes the repair process much simpler than trying to adapt incompatible parts.