Weather Guard 125-3-04 gull-wing crossover box in brite white, front three-quarter studio view with the lids closed
Weather Guard 125-3-04 gull-wing crossover box in brite white, straight-on front elevation with the lids closed
Weather Guard 125-3-04 gull-wing crossover box in brite white, straight-on front view with the lids open, showing the full interior
Weather Guard 125-3-04 gull-wing crossover box in brite white, one lid raised on its gas strut, showing the interior and the center divider
Weather Guard 125-3-04 gull-wing crossover box in brite white, side profile showing the body depth and the bed-rail notch
Weather Guard 125-3-04 gull-wing crossover box in brite white, dimensional drawing of the removable divider tray with measurement callouts

Weather Guard 125 Steel Gull-Wing Truck Tool Box, Full-Size Standard, Brite White (125-3-04)

$1,398.00 $1,644.99 Save $246.99
FREE SHIPPINGNo sales tax Only 1 leftIn stock now  Estimated delivery
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Weather Guard Truck Box Hardware Installation Guide

Weather Guard's official hardware video zooms in on the clamp and bolt kit that secures its truck boxes to the bed rails without drilling. It is a helpful close-up companion to the full box install and shows how the mounting brackets hook under the rail lip and tighten down. Use it alongside the printed instructions that ship with the box.

How the 1Key UltraLock System Works

A step-by-step look from Weather Guard at what the 1Key UltraLock actually does: how the cylinder accepts a new code, why the red push button retracts when the box is locked, and how the latch pulls the lid down against the seal. Worth two minutes before you set the box up.

How to Code Your 1Key UltraLock Lock

Weather Guard's official walkthrough for coding the lock so this box opens with the same key as the rest of your Weather Guard boxes. Follow it once when the box arrives and you can stop carrying a separate key for every lid on the truck.

Weather Guard Truck Box Hardware Installation Guide

Weather Guard's official hardware video zooms in on the clamp and bolt kit that secures its truck boxes to the bed rails without drilling. It is a helpful close-up companion to the full box install and shows how the mounting brackets hook under the rail lip and tighten down. Use it alongside the printed instructions that ship with the box.

How the 1Key UltraLock System Works

A step-by-step look from Weather Guard at what the 1Key UltraLock actually does: how the cylinder accepts a new code, why the red push button retracts when the box is locked, and how the latch pulls the lid down against the seal. Worth two minutes before you set the box up.

How to Code Your 1Key UltraLock Lock

Weather Guard's official walkthrough for coding the lock so this box opens with the same key as the rest of your Weather Guard boxes. Follow it once when the box arrives and you can stop carrying a separate key for every lid on the truck.

Frequently Asked Questions

Straight answers on specs, fit and support

Will the 125-3-04 fit my truck?

It is a full-size standard crossover, or saddle, box that mounts across the top bed rails behind the cab, so it fits full-size pickups such as the F-150, Silverado and Sierra 1500 through 3500, Ram 1500 through 3500, Tundra and Titan. It needs about 72" of rail-to-rail width. Measure your bed rails and check clearance behind the cab first, and note it is not designed for compact or mid-size trucks.

Does it require drilling to install?

No. The gull-wing box ships with under-rail clamps and hardware, so it mounts without drilling into your truck. Most installs take about 20 to 30 minutes and go easiest with two people to lift and hold the box while you clamp it down.

How does this gull-wing box lock?

Each of the two gull-wing lids has its own automotive-grade dual-stage rotary latch for smooth, secure closing, and the box is 1Key UltraLock compatible, so it can be keyed into the same one-key system as your other Weather Guard boxes. Two keys are included.

Does the white finish stay clean and hold up over time?

The brite white ARMOR TUF coating resists rust, chips and yellowing, and the full-perimeter D-shaped weather seal keeps the inside dry. White shows road grime sooner than dark colors, but it wipes clean quickly and reflects heat to keep contents cooler.

Why choose the white finish over black or aluminum?

Brite white reflects heat instead of absorbing it, so tools and adhesives inside stay a little cooler on hot days, and it is the easy pick for matching a white work-truck or van fleet. The ARMOR TUF coating keeps it looking sharp and rust-free.

What is it made of and how big is it?

It is built from heavy-duty formed steel with a brite white ARMOR TUF powder coat. The exterior measures 72"L x 22-3/4"W x 19"H with 11.3ft³ of storage, and it ships at about 115 lb, so it is heavy-duty and built to last.