Secure, Accessible Storage for Your Work Truck
Reclaim valuable space and keep your essential gear organized, secure, and protected from the elements with the Buyers Products 1703321 Underbody Truck Box. Designed for the demanding environments of work sites and highways, this compact yet rugged toolbox provides a perfect solution for storing everything from tie-down straps and chains to hand tools and emergency equipment. Manufactured by the trusted experts at Buyers Products, this 18-inch wide box is built to withstand daily abuse while providing convenient access to your tools exactly where you need them, mounted securely beneath your truck bed or trailer.
Built for Uncompromising Durability and Security
The foundation of the 1703321 is its heavy-duty carbon steel construction, engineered for maximum strength and impact resistance. A sleek, black powder-coat finish provides a formidable barrier against rust, corrosion, and road grime, ensuring the box maintains its structural integrity and professional appearance for years to come. Security is paramount, which is why this toolbox features a robust, die-cast compression T-handle latch. This locking latch creates a tight seal that not only deters theft but also minimizes vibrations and rattling during transit. The door is reinforced with a continuous hidden hinge that further enhances security by preventing pry-in attempts, giving you peace of mind that your valuable assets are protected.
All-Weather Protection for Your Valuable Gear
Don’t let rain, snow, or dust compromise your tools. The 1703321 is engineered with a superior weather-resistant design to keep its contents clean and dry in any condition. A built-in, automotive-style D-bulb gasket lines the door opening, creating a watertight seal when the latch is compressed. This crucial feature prevents moisture and debris intrusion, protecting sensitive equipment from damage. Its versatile and compact size makes it an excellent choice for a wide range of applications, from flatbeds and semi-trailers to utility and service trucks. For anyone looking to add reliable and protected storage, this unit is a premier example of the quality found across our entire line of Underbody Tool Boxes.
- Part Number: 1703321
- Material: Heavy-Duty Carbon Steel
- Finish: Black Powder-Coat for Superior Corrosion Resistance
- Overall Dimensions: 15″ (Height) x 13″ (Depth) x 18″ (Width)
- Storage Capacity: Approximately 2.0 cubic feet
- Door Style: Drop-Down Door for Easy Access
- Latch System: Locking Die-Cast Compression T-Handle Latch
- Hinge Type: Continuous Hidden Hinge for Enhanced Security
- Weather Seal: Automotive-Grade D-Bulb Gasket
- Construction: Welded for Maximum Strength and Durability
- Application: Ideal for underbody mounting on flatbeds, trailers, and work trucks
- Mounting: Brackets are sold separately to ensure a custom fit for your vehicle.




