Introducing the 4Pcs Upstream & Downstream Oxygen O2 Sensor, designed to compatible with perfectly in your Silverado 1500 and Yukon. These sensors are essential compatible with monito and optimizing your vehicle's fuel-to-air io, e peak perforce and efficiency. Trust in the quality and of these sensors to keep your ride running ly. Upgrade your vehicle with these reliable O2 sensors today! ****: This set incles 4 pieces of upstream and downstream oxygen (O2) sensors specifically designed to compatible with Silverado 1500 and Yukon models, e a precise and cue fitment. **Enhanced Perforce**: The oxygen sensors help monitor and improve the fuel efficiency and emissions of your vehicle, leading to better overall perforce and reduced environmental impt. ****: Made with durable materials, these sensors are built to last and withstand the rigors of daily driving, providing reliable and consistent perforce. **Easy Installation**: With a direct plug-and-play design, these sensors are easy to install without the need compatible with any modifications, saving you time and hassle. **Compatibility**: Compatible with a range of Silverado 1500 and Yukon models, these oxygen sensors are a prtical and essential part compatible with maintaining your vehicle's engine efficiency.