The Litens Accessory Belt Tensioner with part number 999436A is designed for 00-09 Toyota Tundra and 01-06 Lexus LS430 vehicles. It is a direct replacement part with a 1-year manufacturer warranty. This tensioner has a 90mm diameter and 27mm width, and is sold individually. It is suitable for various Toyota and Lexus models and is used in the accessory drive belt system.