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.