BOXES

Boxes For Peterbilt Trucks

From tool boxes and battery boxes to under-bunk storage, truck boxes keep essential gear organized and protected from the elements across hundreds of thousands of miles. Our selection includes aluminum and steel options in a range of sizes, designed to mount cleanly on Peterbilt frame configurations. Whether you're adding storage for a long-haul setup or replacing a worn-out box, you'll find the right fit here.

Frequently asked questions about boxes

What's the difference between a tool box and a battery box on a truck?

Tool boxes are general-purpose storage enclosures, typically aluminum, mounted on the frame rail ahead of the rear axles. They store chains, binders, emergency equipment, and personal tools. Battery boxes are specifically sized and vented to house the truck's battery bank, with cutouts for cables and hold-down hardware. The two are not interchangeable — battery boxes must meet specific ventilation and retention requirements for safe operation.

What material is better for truck boxes — aluminum or steel?

Aluminum is the most popular choice because it's lightweight, corrosion-resistant, and easy to maintain. Steel boxes are heavier and more prone to rust if the coating is damaged, but they're generally less expensive and can better resist physical damage in demanding work environments. For long-haul trucks where weight savings matter, aluminum is almost always the better choice.

How are truck tool boxes mounted to a Peterbilt?

Most truck tool boxes mount to the frame rail using u-bolt or bracket systems that attach to the frame flange. Mounting hardware needs to match the frame rail dimensions of your specific Peterbilt model. Some boxes include universal mounting hardware while others require model-specific brackets. Always torque mounting hardware to spec — a loose box at highway speed can cause damage or become a road hazard.

Other parts you might need

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