The Kenworth Diamond Aluminum Battery Box Cover Lid with Hinge is a practical and reliable solution for Kenworth W900 owners. Available in three sizes (45 Inch, 40 Inch, and 24 Inch), this lid comes with a convenient top step for easy access. Sold individually, it fits most Kenworth W900 makes and models. With its sturdy construction and included hinge, this battery box cover lid ensures durability and functionality. Upgrade your Kenworth W900 with this high-quality lid for a secure and efficient battery box solution.