Skip to content
PROUDLY MANUFACTURING IN THE USA!
Black rugged van storage box with integrated mounting points and fold-down door workstation.
Van Storage Box Monster 40 mounted on rear door of off-road van with fold-down work station and secure storage features.
Large black waterproof van storage box with fold-down door and steel mounting points for off-road gear storage
Large black van storage box with fold-down door and interior shelf, designed for secure and waterproof gear storage.
Black van storage boxes by Owl Boxes, waterproof and durable for off-road gear storage and mounting compatibility with B2 and B2 Pro carriers.
Open Box #4 Van Storage Box Monster 40 with fold-down door workstation, rugged waterproof construction, and ample space for off-road gear and essentials.
Van Storage Box Monster 40 mounted on open van door with snowboard gear outdoors
Large black Van Storage Box Monster 40 mounted on rear van door with two mountain bikes on top and rugged off-road design
Van Storage Box Monster 40 mounted on rear door of off-road van with spare tire and roof rack
Open black van storage box mounted on rear door with fold-down work station and waterproof design
Van storage box mounted on rear door of off-road van for secure gear storage and easy access
Man using large black van storage box mounted on rear door of off-road van with gear inside
Open box #4 Van storage box Monster 40 with fold-down door and waterproof TIG-welded steel construction for rugged off-road use
Black heavy-duty van storage box with tiger claw latches and perforated panels for mounting accessories
Open black van storage box with fold-down door and interior shelf for secure gear storage
open box van storage box monster 40 with fold-down door and durable waterproof construction
black open van storage box with fold-down door workstation and steel mounting points
black durable van storage box with fold-down door on blue mat
black van storage box folded closed on purple fabric surface
black van storage box with mounting holes placed on quilted surface
Large black van storage box with durable construction and fold-down door workstation
How can we help you?
Owl

Open Box #2: Van Storage Box Monster 40

Open Box Description: Box has scratches and scuffs on the inside, as well as on the outside. Otherwise box is in good working condition, and has panels, and shelf as well as the hardware.

Built for those who need maximum storage, the Monster 40 delivers a massive 8.8 cubic feet of cargo space in a lightweight, USA-made aluminum box. Trusted as the industry standard for quality and functionality, it’s the ultimate solution for carrying everything you need—no compromises. Requires a rear door carrier like the B2 or B2 Pro.

Install Available at Owl Offroad Locations in Checkout
$900.00
Add Ons:
Large Expedition Box Shelf made of lightweight, powder-coated aluminum for durable, modular storage and organization in Owl Expedition Boxes.

Optimize the space in your Owl boxes by adding additional shelving. Customize your storage with lightweight and moveable shelves built with the same quality materials.

Additional Box Shelves: Monster / Alpine Flat Shelf  • $110.00
Recovery Shovel with Mount - durable billet aluminum design for off-road use.

Compact, tough, and ready for anything. The Standard Recovery Shovel is built for off-road recovery and everyday trail needs, with options to mount on any surface—including your B2 Carrier.

Recovery Shovel with Mount: Black Shovel w/ Black Surface Mount  • $214.99
Rear door B2 sprinter bike rack and box carrier panel for versatile cargo hauling

The best-selling rear door carrier on the market—entirely re-imagined. Capable of carrying an industry-leading 200 pounds of gear, the new B2 now comes with a complete Sherpa hole and slot panel, and even more modular capability.

Sprinter Bike Rack and Box Carrier : Rear Door B2  • $1,798.00
Owl B2 Pro Sprinter bike rack and box carrier for rear door, modular gear storage with 200 lbs capacity

Our largest carrier: The B2 Pro, with a 200 lb weight capacity, gear mounting versatility, and a massive is the bike rack, box carrier, and gear hauler of your dreams.

Sprinter Bike Rack and Box Carrier : Rear Door B2 Pro  • $1,999.00
How can we help you?
Black rugged van storage box with integrated mounting points and fold-down door workstation.
Open Box #2: Van Storage Box Monster 40
JOIN WAITLIST Provide us your email + phone and we’ll contact you when this item becomes available again.
You're all set! 🎉 We'll let you know as soon as this item is back in stock. Thanks for your interest! There was an error submitting the form. Please try again.

By providing your email you agree to receive one time notifications about stock updates. By signing up, you will receive OWL offers, promotions and other commercial messages. You are also agreeing to OWLS's Privacy Policy. You may unsubscribe at any time.

By providing your mobile number in this form, you agree to receive recurring automated promotional and personalized marketing text messages (e.g. cart reminders) from OWL at the cell number used when signing up. Consent is not a condition of any purchase. Reply HELP for help and STOP to cancel. Msg frequency varies. Msg and data rates may apply. View Terms & Privacy.

Monster Box [XL Cargo Box] - Owl Vans

Monster Box Overview

Monster Box [XL Cargo Box] - Owl Vans

Massive Size, Minimal Weight

If you constantly run out of storage or want to carry everything you own in one box, the Owl Monster 40 is for you. With 8.8 cubic feet of internal, dry storage, it's a perfect place for your recovery equipment, dirty boots, or misbehaving children. (This is a joke—please don't put kids in your box.) However, the box's TIG-welded aluminum construction weighs only about 65 lbs.

Monster Box [XL Cargo Box] - Owl Vans

Boxes - Manufactured in the USA

The OWL Monster series of boxes is designed and manufactured in the USA. We take enormous pride in supporting domestically made products, which allows us to control the build and finish quality of each piece. We are obsessive, so you are always ready.

Key Features

Dual-Fold Door
Built to maximize storage - the bottom door folds down, creating a stable work surface for setting up a grill, food prep, or other outdoor tasks. Bottom door has built in slam latch for simple fast closing, top door has gas struts to stay open.
Modular Gear Plates
The front of the Monster XL box features Owl’s signature hole and slot design, making it easy to mount must-have trail accessories. (Shovel shown is not included.)
Versatile Mounting
While the Monster XL box can mount to almost anything, it is pre-drilled for the Owl B2/B2 Pro. Locking latches keep all your gear safe, and prevent box removal.
Adjustable Shelf
The Monster XL box comes standard with one adjustable shelf, which can be moved up or down as needed. Additional shelves can be purchased separately.

RETURNS

We want you to be delighted with your Owl gear! We accept returns up to 30 days from the date of shipment. For more information, visit

Owl Warranty, Cancellations & Returns

CALIFORNA PROP 65

Some parts offered by Owl contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit

www.p65warnings.ca.gov