Northern Tool + Equipment Locking Side-Mount Truck Tool Box — Diamond Plate Aluminum, 48in.

Solid Construction

Rust-Resistant Aluminum

The heavy-duty solid diamond treadplate aluminum body construction doesn't shy away from the elements, resisting rust and corrosion no matter what type of conditions Mother Nature dishes out.

Strong Welded Seams

The rugged construction starts at the seams. Each seam is 100% fully TIG welded to ensure a solid, lasting seal. And the smooth finished edges throughout the design won't chew up your hands, even without gloves.

Support and Stability Take a Stand

Two rear support legs are included to offer greater stability and support when mounting this box to the vehicle. The legs prevent the box from sagging forward, even when fully loaded!

Lock Out the Elements

A premium weather-resistant seal forms a tight barrier around the box lid that keeps out dirt, dust and moisture, effectively protecting the contents in the box from the outside elements.

Premium Performance Parts

Aligned Right, Closes Tight

The reinforced lid brace provides exceptional strength and is teamed with a pair of patented self-adjusting lid strikers that automatically compensate to keep the lid in perfect alignment. No manual adjustments, no hassles, just a secure closure every time.

The Ease and Security of Truck-Style Pull Handles

Locking truck-style pull handles are stylish and ergonomic, not to mention super easy to operate! Just pull the handle with a couple fingers and the lid pops open, ready for access. And it locks up tight when it's not open.

Easy One-Hand Entry

Premium auto lift self-rising shocks quickly spring to life, opening and closing the box lid with minimal effort, which makes loading or unloading much easier when your hands are already full. Plus, they add maximum stability and allow the lid to open nearly 90°.

Full-Length Hinge Support

When a left- or right- side hinge gets wiggly, loose, or breaks free, a truck box lid can become a nightmare to open and close. This box eliminates those worries. The continuous aluminum piano hinge provides full support down the entire length of the lid; one solid hinge with no weak points.

The Ideal Fit for Your Truck

Easy Mounting

The box is ready to mount with your own choice of hardware. For a dependably secure mount that doesn't require drilling into your truck bed, the Better Built Grip Rite truck box mounting kit is available (Item# 42350, sold separately.)

Space-Saving, Easy-Access Side Mount

The box is specially designed to sit solidly on the truck side rails, leaving plenty of room for additional open storage space in the center of the truck bed. And the side mount allows for much easier access from outside the truck bed.

Versatility to Match Your Truck

This heavy-duty box is designed to fit in the bed of most full-size and mid-size pickup truck makes and models. Measures 48in.L x 11 1/2in.D x 11in.H. Check pickup bed and storage box measurements for compatibility before purchasing.

Shop With Confidence

The Northern Tool + Equipment Truck Box Advantage

Northern Tool + Equipment-branded truck boxes are built by Daws Manufacturing/Better Built, utilizing their rugged, innovative designs and over two decades of experience to bring you the ultimate in performance that's built to last … and at great values, to boot. To give you extra peace of mind, we stand behind these products with a Lifetime Limited Warranty.

Expert Answers Are Available

Northern Tool + Equipment is here to help you succeed. Our field-trained, dedicated team of experts is ready to help — call or email and you’ll get a prompt response.

Guaranteed Satisfaction

Shop in complete confidence, knowing that Northern Tool + Equipment protects your investment and is ready to provide you with the assistance and helpful resources you need.