Peterbilt 378, 379 Diamond Plate Aluminum OE Style Battery Box Replacement Lid W. Aluminum Battery Box Replacement Lid With New Style Grip Step By Chrome Shop Mafia. Chrome Shop Mafia&#######x27;s aftermarket Diamond Plated Aluminum Battery Box Replacement Lid with New Style Grip Step is designed to replace your OE 01-05012000 factory style battery box lid. This heavy-duty construction features an upper grip step, square corners, rubber latches, and manufactured from the highest quality materials for the best value. High Quality Aftermarket Replacement Part (Not OEM). Fits Peterbilt 378 2001 thru 2007 Fits Peterbilt 379 2001 thru 2007. Some items may take up to 3 weeks due to current situations. Tracking numbers are not provided automatically. Your feedback is important. If satisfied, please leave a positive review. We strive to respond within 24 hours.