Head to head
Ifor Williams GX125 HD vs Ifor Williams HBX506
The Ifor Williams GX125 HD carries 1,005kg more and is rated 900kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Payload: the Ifor Williams GX125 HD carries 1,005kg more.
- Gross weight: the Ifor Williams GX125 HD is rated 900kg heavier gross.
- Unladen weight: the Ifor Williams HBX506 weighs 105kg more empty.
Specifications side by side
| Ifor Williams GX125 HD | Ifor Williams HBX506 | |
|---|---|---|
| Gross weight | 3500kg | 2600kg |
| Unladen weight | 760kg | 865kg |
| Payload | 2740kg | 1735kg |
| Internal bed | 3.66m x 1.57m | - |
| Internal length | - | 3.26m |
| Internal width | - | 1.67m |
Sources: Ifor Williams GX125 HD, Ifor Williams HBX506. 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 1,005kg more
- you want one that is rated 900kg heavier gross
- you want one that is 105kg 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 HBX506 if...
A mid-size horsebox for owners moving one or two horses who want the updated HBX styling and features rather than the standard HB range trailer.
Listed by
- R M Trailer Centre - Middlesbrough, North Ormesby
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Ifor Williams GX125 HD and the Ifor Williams HBX506?
The Ifor Williams GX125 HD carries 1,005kg more and is rated 900kg heavier gross. The Ifor Williams GX125 HD is a a longer heavy-duty plant trailer; the Ifor Williams HBX506 is a a double horsebox trailer from Ifor Williams' HBX range.
Which is lighter, the Ifor Williams GX125 HD or the Ifor Williams HBX506?
The Ifor Williams GX125 HD. It is 105kg lighter empty than the Ifor Williams HBX506.
Which carries more, the Ifor Williams GX125 HD or the Ifor Williams HBX506?
The Ifor Williams GX125 HD, by 1,005kg.
Can I tow the Ifor Williams GX125 HD or the Ifor Williams HBX506 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.
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