Protect your motorhome or van with the Bulldog DC400 Auto Clamp, a heavy-duty wheel clamp designed for larger vehicle wheels.
Made in Great Britain, the Bulldog DC400 combines robust steel construction, a high-security locking system and a highly visible yellow finish to provide a strong physical and visual deterrent against vehicle and wheel theft.
Designed to fit wheel diameters from 580–740 mm and wheel depths from 190–255 mm (including trim), the DC400 is particularly suited to compatible motorhomes and vans.
Heavy-Duty Motorhome & Van Wheel Security
The Bulldog DC400 Auto Clamp is constructed from heavy-duty 40 mm × 40 mm steel box section with case-hardened arms for increased resistance against attack.
A large 280 mm diameter rubber-backed steel disc covers the wheel nuts, helping prevent access and tampering while protecting the wheel surface.
Despite its heavy-duty construction, the DC400 is designed to be straightforward to fit and remove, making it suitable for both regular use and longer-term vehicle storage.
Key Features
Heavy-duty wheel clamp for motorhomes and vans
Wheel diameter: 580–740 mm
Wheel depth: 190–255 mm including trim
Made in Great Britain
Bulldog high-security plunge lock
Drill and pick-resistant locking system
Over one million possible key combinations
Can be locked without using the key
Heavy-duty 40 mm × 40 mm steel box-section construction
Case-hardened arms for additional security
280 mm rubber-backed steel wheel nut protection disc
Highly visible yellow powder-coated finish
Quick and straightforward to fit
Supplied with 2 keys
Eligible for Bulldog's Security Key Registration Service
5-year Bulldog guarantee when registered
Wheel Size Compatibility
The Bulldog DC400 is designed to fit compatible wheels with:
Wheel diameter: 580–740 mm
Wheel depth: 190–255 mm, including trim
Wheel sizes and configurations can vary between different motorhomes and vans, even on the same vehicle model.
Please measure your wheel before ordering to confirm compatibility.
High-Security Bulldog Plunge Lock
The DC400 uses Bulldog's high-security plunge locking system, designed to resist drilling and picking.
With over one million possible key combinations, the lock provides additional security while remaining convenient to use.
The clamp can also be locked without inserting the key, allowing the vehicle to be secured quickly.
Wheel Nut Protection
A large 280 mm diameter steel protection disc covers the wheel nuts when the clamp is fitted.
The disc is rubber-backed to help protect the wheel surface while restricting access to the wheel nuts and providing an additional layer of physical security.
Highly Visible Theft Deterrent
The Bulldog DC400's distinctive bright yellow powder-coated finish makes the security device immediately visible.
This provides a strong visual deterrent as well as physically immobilising the wheel, helping discourage attempted vehicle theft before an attack begins.
Ideal For
The Bulldog DC400 Auto Clamp is designed for compatible:
Motorhomes
Campervans
Vans
Larger vehicle wheels within the specified dimensions
Always confirm your wheel dimensions before ordering.
Made in Great Britain
The Bulldog DC400 Auto Clamp is manufactured in Great Britain and combines robust UK-made construction with Bulldog's established vehicle-security locking technology.
What's Included
1 × Bulldog DC400 Auto Clamp
2 × security keys
Fitting instructions
5-Year Bulldog Guarantee
The Bulldog DC400 is eligible for a 5-year manufacturer's guarantee when registered with Bulldog.
Keyed-Alike Option
If you already own compatible Bulldog security products, a keyed-alike option is available for an additional £2.49.
After purchasing, please email your existing Bulldog key code to info@driveawaylocksmith.co.uk so compatibility can be checked.