Head to head
Ifor Williams GX125 HD vs Ifor Williams HB403
The Ifor Williams GX125 HD carries 1,907kg more and is rated 1.9 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Payload: the Ifor Williams GX125 HD carries 1,907kg more.
- Gross weight: the Ifor Williams GX125 HD is rated 1.9 tonnes heavier gross.
- Unladen weight: the Ifor Williams HB403 weighs 7kg more empty.
Specifications side by side
| Ifor Williams GX125 HD | Ifor Williams HB403 | |
|---|---|---|
| Gross weight | 3500kg | 1600kg |
| Unladen weight | 760kg | 767kg |
| Payload | 2740kg | 833kg |
| Internal bed | 3.66m x 1.57m | - |
| Internal length | - | 3.08m |
| Internal width | - | 1.30m |
Sources: Ifor Williams GX125 HD, Ifor Williams HB403. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GX125 HD if...
- you want one that carries 1,907kg more
- you want one that is rated 1.9 tonnes heavier gross
- you want one that is 7kg lighter empty
For plant hire firms carrying longer machines such as excavators with extended dipper arms or tracked dumpers that need the extra bed length over the GX105HD.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Buy or hire the HB403 if...
The smallest trailer in the HB horsebox range, bought by owners of a single horse or a couple of ponies who want the lightest legal option that can still be towed by a mid-size car.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Ifor Williams GX125 HD and the Ifor Williams HB403?
The Ifor Williams GX125 HD carries 1,907kg more and is rated 1.9 tonnes heavier gross. The Ifor Williams GX125 HD is a a longer heavy-duty plant trailer; the Ifor Williams HB403 is a a compact single-horse or two-pony horsebox trailer.
Which is lighter, the Ifor Williams GX125 HD or the Ifor Williams HB403?
The Ifor Williams GX125 HD. It is 7kg lighter empty than the Ifor Williams HB403.
Which carries more, the Ifor Williams GX125 HD or the Ifor Williams HB403?
The Ifor Williams GX125 HD, by 1,907kg.
Can I tow the Ifor Williams GX125 HD or the Ifor Williams HB403 on a car licence?
Yes, as far as the licence goes. Both are rated at or under 3,500kg gross, and a car (B) licence has covered towing up to 3,500kg since 16 December 2021. Your car still has to be rated to tow the loaded weight - check the handbook or the VIN plate.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.