The Kenworth W900A 45 Inch Single Battery Box Assembly is a practical and reliable solution for Kenworth W900A models. This battery box assembly is available with a single step and fits most Kenworth W900A models. With its sturdy construction and easy installation, it provides a convenient and secure storage space for your vehicle's battery. Designed for practicality and functionality, this battery box assembly is a must-have for any Kenworth W900A owner.