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Your cart is empty.The higherbro 4X Air Fuel Ratio Oxygen Sensor is designed for Nissan Xterra, Frontier, and Pathfinder models from 2005-2006 with a 4.0L engine. This package includes 4 sensors in total, with 2 upstream and 2 downstream Air Fuel Ratio Sensors. The sensors are made of high-quality Stainless Steel and Ceramic materials, ensuring durability and a maximum temperature rating of 1200 degrees Celsius. The mounting type is Flange Mount, making installation straightforward. This product is an ELECTRONIC_SENSOR type and comes with a one-year quality guarantee. Please verify your vehicle's compatibility by checking the 'Select Your Vehicle' option at the top of the product link, considering the make, model, year, engine, and any notes, especially the engine and note sections.