This set of oxygen sensors is designed to fit GM Tahoe and Yukon 5.3L V8 vehicles and includes a wire harness and mini-blade terminals for easy installation. The sensors are made of durable metal material and feature a screw-in mounting style. With a sensor type of oxygen sensor, these sensors provide direct fit and wired performance without the need for any modifications. They are compatible with a range of OE/OEM and interchange part numbers, making them a versatile choice for engine compartment, lower, and rear placement on the vehicle. Purchase this set of sensors to ensure accurate and reliable readings of oxygen levels in your vehicle's exhaust system. Exact item set is shown. New open box with original packaging. Has female 4 pin connector, as shown. Made in China. No returns on installed items or partial sets. This item is a new, opened customer return. It has been inspected and passed quality control to insure the condition described and contents are accurate. Please review actual photos as stock photos are not the actual item, our photos are. You will ONLY receive exactly what is shown in photos, regardless of what might have originally been included. Please review our business policies in our store for information regarding returns, shipping and warranties.