Maximize your truck’s storage capacity and secure your valuable equipment with the Buyers Products 1703303 Black Steel Underbody Truck Box. Designed for the demanding conditions of the job site, this tool box provides a professional-grade solution for contractors, mechanics, and fleet managers who need reliable, accessible, and weather-resistant storage. By mounting conveniently beneath your truck bed or trailer, it frees up critical space in your cab and bed, allowing for better organization and protection of your tools, chains, straps, and other essential gear without sacrificing hauling capacity.
Engineered for unyielding durability, the 1703303 is constructed from rugged 14-gauge carbon steel, built to withstand the daily abuse of heavy use and harsh road conditions. The entire box is finished with a tough, black powder coat that provides a formidable barrier against rust, corrosion, and abrasion, ensuring a long service life and maintaining a professional appearance. The recessed drop door design creates a stronger, more secure closure that is less susceptible to prying and impact. This thoughtful engineering is complemented by an automotive-grade, D-bulb rubber gasket that lines the door opening, creating a tight seal to lock out water, grime, and dust, keeping your tools clean, dry, and ready for work in any weather.
Security is paramount when your livelihood is on the line. This underbody box features a robust, die-cast compression T-handle latch that ensures the door is pulled tight against the seal for maximum protection. The locking mechanism provides peace of mind, deterring theft and keeping your assets safe whether you’re on the job or parked for the night. Manufactured by the trusted experts at Buyers Products, this tool box is part of a comprehensive line of storage solutions. For more options, explore our full collection of Underbody Tool Boxes to find the perfect fit for your vehicle. Please note that mounting brackets are sold separately to allow for versatile installation on a wide range of truck and trailer frames.
- Part Number: 1703303
- Durable Construction: Built from heavy-duty 14-gauge carbon steel for maximum strength and impact resistance.
- Corrosion-Resistant Finish: A tough, black powder-coat finish protects against rust, chemicals, and scratches.
- Overall Dimensions: 14 in. (Height) x 16 in. (Depth) x 30 in. (Width).
- Secure Locking System: Features a die-cast locking compression T-handle latch for superior security and a tight seal.
- Weatherproof Design: A replaceable automotive-grade D-bulb door seal and recessed drop door prevent water and dust intrusion.
- Reinforced Door: The drop-door design adds rigidity and strength, with a continuous hidden hinge for added security and longevity.
- Space-Saving Solution: Mounts under the body of your truck or trailer to provide essential storage without occupying bed space.
- Versatile Application: Ideal for flatbeds, dump trucks, service bodies, and trailers.
- Installation: Mounting brackets are sold separately for a custom fit to your vehicle’s frame.
- Made in the USA: Proudly manufactured in the United States.




