The Kenworth W900A 45 Inch Battery Box Cover is a practical and reliable accessory for Kenworth W900A models. This battery box cover is designed to fit most Kenworth W900A models and comes with a single step for added convenience. With its durable construction and easy installation, this battery box cover offers protection and accessibility for your vehicle's battery. Sold individually, this product is a must-have for Kenworth W900A owners looking to enhance their truck's functionality.