Weather Guard Tool Boxes

Shop Weather Guard tool boxes for full-size and mid-size pickups and work trucks. This collection brings every Weather Guard truck box style together: crossover (saddle) boxes, lo-side and top mount boxes, chest boxes, underbody boxes and wheel well boxes, in steel and aluminum. Weather Guard tool boxes are made in the USA and backed by a limited lifetime warranty. Upfit Supply is an authorized Weather Guard dealer, and most boxes ship within 1 business day from our strategically located warehouses across the US. For the full brand lineup, visit our Weather Guard page.

Weather Guard Tool Box Styles

Weather Guard Crossover Boxes

Crossover boxes, also called saddle boxes, span the bed behind the cab and rest on both bed rails. They come in standard, deep, low profile and extra wide sizes, with single-lid and gull wing versions for full-size and mid-size trucks.

Weather Guard Lo-Side Boxes

Lo-side (side mount) boxes run along one bed rail and keep the center of the bed open for long or flat material. Many buyers run a matched pair, one per side.

Weather Guard Top Mount Boxes

Top mount, or hi-side, boxes sit on top of the bed rail for more height and capacity than a lo-side box while still leaving the bed floor open.

Weather Guard Chest Boxes

Weather Guard All-Purpose Chests sit on the bed floor, usually against the front wall, for deep storage that doesn't cover the bed rails.

Weather Guard Underbody Boxes

Underbody boxes mount beneath a flatbed or service body, adding lockable storage without using deck space.

Weather Guard Wheel Well Boxes

Wheel well boxes fit the space beside the rear wheel well and come in driver-side and passenger-side versions. Compare them with other brands in our wheel well boxes collection.

Steel or Aluminum?

Many Weather Guard boxes are offered in both steel and aluminum. Aluminum boxes weigh less than steel boxes of the same size, which saves payload. Steel and aluminum versions are priced differently, so compare both on the product page and check dimensions and finish before you order.

Locks, Keys and Replacement Parts

Lost a key or need a new lock cylinder? Weather Guard tool box locks include replacement locks for 03 and 04 series crossover and lo-side boxes, replacement keys, and Defender Series locks.

Want to compare Weather Guard with other brands? Shop all truck tool boxes.

Weather Guard Tool Box FAQs

What styles of Weather Guard tool boxes are there?

Weather Guard makes crossover (saddle) boxes, lo-side (side mount) boxes, top mount (hi-side) boxes, all-purpose chest boxes, underbody boxes and wheel well boxes. Each style has its own collection linked above.

What is the difference between Weather Guard crossover boxes and lo-side boxes?

Crossover boxes span the full width of the bed behind the cab and rest on both bed rails, giving the most storage in one box. Lo-side boxes mount along one bed rail at a lower profile, keeping the center of the bed open for hauling long or flat material.

Should I choose a steel or aluminum Weather Guard tool box?

Aluminum saves weight, which matters if you run close to your truck's payload. Steel and aluminum versions are priced differently, so compare both versions of the same model on the product page.

Which size Weather Guard crossover box fits my truck?

Crossover boxes come in full-size and mid-size versions. Within each, choose standard, deep, low profile or extra wide based on how much storage you need and how much rear visibility you want to keep. Check the listed dimensions against your bed before ordering.

Where can I buy Weather Guard replacement locks and keys?

Shop Weather Guard tool box locks for replacement locks for 03 and 04 series crossover and lo-side boxes, replacement keys and Defender Series locks.