Bulldog DC400 Auto Clamp – heavy-duty motorhome and van wheel clamp, made in Great Britain and designed to provide high-security protection for larger vehicle wheels.
 
Product Highlights
• Ideal for motorhomes, campervans and vans
• Made in Great Britain
• Wheel diameter: 580–740 mm
• Wheel depth: 190–255 mm including trim
• 280 mm steel disc protects the wheel nuts
• Drill and pick-resistant high-security lock
• Heavy-duty steel construction
• 5-year Bulldog guarantee when registered
 
Heavy-Duty Security for Motorhomes & Vans
The Bulldog DC400 Auto Clamp is designed to provide robust wheel security for motorhomes, campervans, vans and other compatible vehicles with larger wheels.
 
Constructed from heavy-duty 40 mm × 40 mm steel box section with case-hardened arms, the DC400 provides a strong physical barrier against vehicle and wheel theft.
 
A large 280 mm rubber-backed steel protection disc covers the wheel nuts when fitted, helping to prevent access and tampering while also protecting the wheel surface.
 
The distinctive bright yellow finish makes the clamp clearly visible, providing an immediate visual theft deterrent.
 
Ideal for Motorhomes, Campervans & Vans
The Bulldog DC400 Wheel Clamp is designed for compatible larger vehicle wheels with the following dimensions:
Wheel diameter: 580–740 mm
Wheel depth: 190–255 mm including trim
Important: Wheel sizes and configurations can vary between vehicles, even on the same make and model.
 
Always measure your actual wheel before ordering to confirm compatibility.
 
Key Security Features
• Heavy-duty 40 mm × 40 mm steel box-section construction
• Case-hardened arms for additional security
• Bulldog high-security plunge locking system
• Drill and pick-resistant lock
• Over one million possible key combinations
• Can be locked without using the key
• 280 mm diameter steel wheel nut protection disc
• Rubber-backed disc helps protect the wheel surface
• Highly visible yellow powder-coated finish
• Strong physical and visual theft deterrent
• Quick and straightforward to fit
• Suitable for regular use and longer-term vehicle storage
 
What Is the Bulldog DC400 Suitable For?
The Bulldog DC400 Auto Clamp is designed for compatible larger vehicle wheels and is particularly suitable for:
• Motorhomes
• Campervans
• Vans
• Other vehicles with compatible larger wheels
Compatibility should always be determined using your actual wheel diameter and wheel depth, rather than the vehicle model alone.
 
High-Security Bulldog Plunge Lock
The Bulldog DC400 uses Bulldog's high-security plunge locking system, designed to resist both drilling and picking.
With over one million possible key combinations, the locking system provides additional security while remaining convenient for regular use.
 
The clamp can also be locked without inserting the key, allowing your vehicle to be secured quickly and easily.
 
Wheel Nut Protection
A large 280 mm diameter steel protection disc covers the wheel nuts while the DC400 is fitted.
This helps restrict access to the wheel nuts and provides an additional layer of physical security against unauthorised wheel removal.
 
The disc is also rubber-backed to help protect the wheel surface while the clamp is fitted.
 
Made in Great Britain
The Bulldog DC400 Auto Clamp is manufactured in Great Britain, combining heavy-duty UK-made construction with Bulldog's established vehicle-security locking technology.
 
Its highly visible yellow powder-coated finish also makes the security device immediately noticeable when fitted, helping deter a potential theft attempt before it begins.
 
What's Included?
• 1 × Bulldog DC400 Auto Clamp
• 2 × security keys
• Fitting instructions
 
5-Year Bulldog Guarantee
The Bulldog DC400 Auto Clamp is eligible for a 5-year manufacturer's guarantee when registered with Bulldog, providing additional peace of mind with your purchase.
 
Keyed-Alike Option
Already own a compatible Bulldog security product?
A keyed-alike option is available for an additional £2.49, allowing compatible Bulldog security products to operate using the same key.
 
After ordering, please email your existing Bulldog key code to info@driveawaylocksmith.co.uk so compatibility can be checked.
 
Protect Your Motorhome or Van
For owners looking for a heavy-duty wheel clamp for a motorhome, campervan or van, the Bulldog DC400 combines robust British-made construction, high-security locking technology and wheel nut protection with a highly visible physical theft deterrent.