94167 Diamond Plate Battery Box Lid w/ Top Step fits Peterbilt 379 389 Truck. In addition to safeguarding your batteries, the built-in top step provides easy access for cab entry or maintenance tasks, making it a practical upgrade for your truck. Crafted from high-quality materials, this battery box lid is engineered to withstand daily wear and harsh road conditions, ensuring long-lasting performance. Vehicle Compatibility: Fits Peterbilt 379 and 389 models. Diamond Plate Design: Durable and stylish with a tough, industrial look. Top Step Integration: Provides a sturdy step for easier cab access or maintenance. High-Quality Construction: Made from premium materials for lasting durability. Easy Installation: Designed for a precise fit, ensuring quick and secure installation.