HB403 Single


HB403 Single

Traditional design that ensures your horse experiences the utmost comfort and safety.

The Ifor Williams HB403 offers exceptional comfort and safety for your horse while maintaining a classic design.

Constructed with an aluminium frame consisting of six vertical pillars in each corner and horizontal extrusions for added strength, the trailer boasts a concealed frame, creating a large side panel area and an automotive appearance.

The trailer's brushed aluminium frame and composite aluminium/plywood side panels, along with side and inspection windows, provide ample daylight and a stylish aesthetic. The HB403 also comes equipped with standard breast and breeching bars.

As a single horsebox, the HB403 provides a wider stall and increased headroom for one 16.2hh horse compared to our double horsebox models. Its narrower size also allows for easier towing and less wind resistance.

The HB403 is particularly suitable for transporting nervous horses who prefer to travel alone. Additionally, it may not require a 4x4 to tow (depending on the vehicle's capacity) and can be towed by drivers without a B+E category on their driving licence.

Aluminium floor and rubber matting

Aluminium floors fitted as standard. Floors are covered with a 12mm thick rubber matting, providing a non-slip surface and excellent vibration absorption.

Tough, nylon moulded hinges & handles

Tough nylon moulded pull handles, catches and hinges for increased strength and ease of use.

Security marking registration with TER

Each trailer is fitted with an ID plate which has a unique serial number etched on it. Additionally, the drawbar has a different unique number cut through it, which is virtually impossible to alter without noticeably affecting the appearance of the numbers and galvanized finish.

Breast bar release system

Enables the release of breast bars safely from outside of the trailer. Conveniently suits the wheel brace supplied with each horsebox.


Glass fibre roof with large ventilation area for increased air circulation and natural light.

Quick release door catches

These can be latched in both the open and closed position.

Clip-on number plate holder

Enables you to attach your number plate to the trailer without adhesive. Number plates can be changed quickly and easily when using different towing vehicles.

Re-styled mudguards

Rear positioned spare wheel

Positioned at the rear of the trailer, keeping side panels clear for your choice of graphics.

Gas strut assisted ramps

Rear ramp is gas strut assisted, making light work of opening and closing the ramp.

Large front window

Fitted to double horsebox models, front windows are positioned to be in line with most 4x4 rear windows so that horses can be viewed from the towing vehicle.

Lockable grooms door

Flush fitting locking mechanism, provides privacy for riders if used for changing at a show. Grooms doors can be positioned on either side of the trailer.

Centre partition

Cream padding provides a light and bright interior. Hardwearing plastic kickboards along trailer sides and rubber skirts along the centre partition provide additional protection for the horse and trailer.

Side marker lights

High level side marker light fitted to all double Horsebox models as standard.

Interior light

Useful on dark evenings, when loading and unloading horses.

Side windows

Fitted as standard to all models, side windows increase natural light into the interior. These can be upgraded to sliding windows if required.

Left or right hand ramp

Traditionally positioned on the right side of the horsebox, customers can choose which side the front offload ramp is positioned. Grooms doors are fitted to the opposite side chosen for the ramp.

Contact Barnwell Trailers today to find out more!