This oxygen sensor is a perfect fit for Toyota Sienna models made between 2004 and 2006 with a 3.3L engine and 2007-2010 models with 3.5L engine. It is designed to detect oxygen levels in the engine compartment and rear of the vehicle, and is made with high-quality plastic and metal materials for durability. The sensor is easy to install, with a screw-in mounting style and mini-blade terminal type. It is a direct fit and comes with a female connector type. This sensor does not require any modification to your vehicle, and is wired for a hassle-free installation. This product is a great choice for anyone in need of a replacement oxygen sensor. Exact item is shown. New open box item with original packaging. Made in China. Has 4 pin female plug connector. No returns if installed. 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. Please review our business policies in our store for information regarding returns, shipping and warranties.