The Lisle 34350 Water Sensor Wrench is designed for Duramax 2001-2011 models, making fuel filter changes effortless. Engineered to prevent damage to the Water In Fuel (WIF) sensor, this durable tool ensures a hassle-free maintenance experience, preserving the integrity of your vehicle's components and keeping your engine running smoothly. Ideal for anyone who values precision and ease in vehicle upkeep.