Chrome Shop Mafia’s aftermarket 31x30x15-inch aluminum battery box is built for certain Peterbilt truck models. The boxes feature diamond-plated front and top, smooth sides, steps and two rubber latches. The boxes are built by CSM in Joplin, Missouri, and are sold at 4 State Trucks. The boxes come with a warranty against defects in workmanship and material from the date of purchase.
