The 11 Gauge Stainless Steel Battery Box is a practical and durable solution for your 389 Peterbilt truck. Made from complete stainless steel, this battery box offers exceptional strength and longevity. It fits most 389 Peterbilt makes and models, but it's important to check the year and style prior to ordering. With its high-quality construction, this battery box ensures the safety and security of your batteries, making it a reliable choice for truck owners.