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Pass Through Tunnel Boxes

Pass through tunnel boxes create extra storage across the width of a truck or trailer. With access from either side, they provide unmatched convenience for loading and retrieving tools. Constructed for heavy-duty work, they keep equipment safe from the elements. Tunnel boxes are ideal for fleets and work vehicles that require maximum storage capacity.

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Miller 94" x 24" Aluminum Saddle Box

Aluminum Crossover Tunnel Toolbox, 24" Wide x 94" Long. For Installation With A Century 211, Century Midnight, Century Express, Century FI 411/412, Century F6500 602/612, Vulcan 810, Vulcan 807, Vulcan 881/882, and Vulcan 892/894 Wrecker Units. Installation Includes A Junction Box For Connection Of The Truck Chassis Wiring With The Body. Optional Accessories (Light bars, Work Lights, Hook Up Lights, And Toolbox Lights) Will Also Be Connected To Their Respective Switch Circuits Using The Junction Box Located In The Tunnel Box. Painting Of The Tunnel Box Includes The Sanding Of The Factory Surface, Apply Epoxy Primers, and Color Coating Of PPG Poly Urethane Enamel.
$6,386.99

Miller Tunnel Box Aluminum, Pete Twin Steer

This is a 30" or 36" Tunnel Box for Miller Rotators installed on Peterbilt Twin Steer Chassis, aluminum construction, 2010/current.
$20,812.99 $28,522.99

Miller Tunnel Box Storage Attachment

This tunnel box storage attachment from Miller Industries works with in a 36" tunnel box or a 48" tunnel box. The attachments and spreader bar tube storage are not included.
$1,106.99

Miller 24" Alum Tunnel Box Assy

This is a 24 alum tunnel box assy. form Miller Industries.
$10,072.99

Miller Vulcan Pass Through Box

This Pass Through Tunnel Box from Miller Industries can be used with Vulcan trucks.
$2,598.99

Miller 48" Tunnel Box for Vulcan

This Tandem Steer 48" tunnel box from Miller Industries. Fits Vulcan V70 & V100 bodies
$16,407.99

Miller Industries Pass Thru Universal Aluminum Box

This is a universal 24" cross over tunnel box for heavy duty Century and Vulcan wreckers by Miller Industries.
$1,017.99

Miller Industries Stainless Steel Tandem Steer Tunnel Box Trim Kit

This Stainless Steel Trim Kit from Miller Industries is for use on a Tandem Steer Tunnel Box.
$1,079.99

Miller 24" x 88" Red Tunnel Box

Please Note: Product Discontinued - ALL SALES FINAL!

Discontinued items are not eligible for return. View Returns Policy

$5,046.99

Miller 48" Tunnel Box

This Pete Tandem Steer tunnel box from Miller Industries is 48".
$22,860.99

Miller Tunnel Box Kit, Conv Composite

Miller conv composite tunnel box kit.
$846.99

Miller Industries Additional 24" Aluminum Tunnel Box w/ "O" Notch

This tunnel box from Miller Industries does not come with a notch. It is made from aluminum and it is 24". The tunnel box can be used on a Vulcan V-24 or a Century 2465.
$7,470.99

Miller Industries 24" Stainless Steel Tunnel Box Assy - 40X9

This is a 24 Ss tunnel box assy. - 40 X 9 from Miller Industries.
$7,751.99
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Pass Through Tunnel Boxes for Wreckers and Tow Trucks

For towing professionals, fleet operators, and recovery specialists, pass through tunnel boxes are an essential storage solution. Designed to span the width of the truck, these toolboxes provide maximum storage capacity while keeping gear secure, organized, and easily accessible from either side. Whether you need wrecker pass through tunnel boxes, tow truck tunnel boxes, or Miller tunnel boxes, this style of storage offers both durability and efficiency.

Why Choose a Pass Through Tunnel Box?

  • Expanded Storage Capacity – Spanning across the frame, tunnel boxes maximize space without interfering with deck or bed usage.
  • Dual-Side Access – Designed for convenience, allowing tools and equipment to be retrieved from either side of the truck.
  • Professional Durability – Built with heavy-duty aluminum or steel to withstand daily towing and recovery demands.
  • Organized Solutions – Many models come with compartments or shelves to keep gear secured and easy to locate.

With a tow truck tunnel box, operators can keep essential rigging, chains, straps, and recovery equipment protected and ready for use.

Best-Selling Pass Through Tunnel Boxes

Our selection includes top-performing models trusted by towing operators nationwide:

From Miller tunnel boxes to versatile Buyers Products models, you’ll find configurations that match your truck’s setup and your storage needs.

Trusted Brands for Tunnel Boxes

We carry leading brands like Miller Industries, Buyers Product Co., and Zip’s, each offering tunnel boxes that balance durability, convenience, and fit. Whether you’re equipping a wrecker, rollback, or tow truck, these brands deliver tested solutions that professionals trust.

Choosing the Right Tunnel Box

When selecting a pass through tunnel box, consider:

  • Vehicle Fit – Measure your frame and mounting area to ensure proper sizing.
  • Material Choice – Aluminum for corrosion resistance and lighter weight, or steel for maximum toughness.
  • Access and Organization – Choose models with shelving or interior dividers for more efficient storage.
  • Application – Wrecker operators may need heavy-duty tunnel boxes, while light-duty tow trucks may benefit from more compact options.

To keep your equipment running smoothly, we also stock Toolbox Parts for long-term maintenance and upgrades.

FAQ: Pass Through Tunnel Boxes

What is a pass through tunnel box?
It is a large storage box that spans the truck’s frame, providing access from both sides for maximum storage efficiency.

Are tunnel boxes only for wreckers?
While commonly used on wreckers, tunnel boxes are also found on rollbacks, service trucks, and other heavy-duty vehicles that require large storage solutions.

Do tunnel boxes come in different sizes?
Yes, tunnel boxes are available in a variety of sizes and configurations to fit different truck models and operator needs.

What materials are available for tunnel boxes?
Most tunnel boxes are built from aluminum for lighter weight and corrosion resistance or steel for maximum durability.