Head to head
Ifor Williams GP126 vs Ifor Williams HBX506
The Ifor Williams GP126 is rated 900kg heavier gross and is 40cm (1.5ft) longer inside.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams GP126 is rated 900kg heavier gross.
- Internal length: the Ifor Williams GP126 is 40cm (1.5ft) longer inside.
- Unladen weight: the Ifor Williams HBX506 weighs 85kg more empty.
- Internal width: the Ifor Williams GP126 is 11cm wider inside.
Specifications side by side
| Ifor Williams GP126 | Ifor Williams HBX506 | |
|---|---|---|
| Gross weight | 3500kg | 2600kg |
| Unladen weight | 780kg (skids) or 795kg (ramp) | 865kg |
| Internal length | 3.66m/12' | 3.26m |
| Internal width | 1.78m/5'10" | 1.67m |
| Payload | - | 1735kg |
Sources: Ifor Williams GP126, Ifor Williams HBX506. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GP126 if...
- you want one that is rated 900kg heavier gross
- you want one that is 40cm (1.5ft) longer inside
- you want one that is 85kg lighter empty
- you want one that is 11cm wider inside
A twin-axle general purpose trailer from Ifor Williams's plant range, used to carry mini diggers, dumpers and other small plant, or general building materials. Available with loading ramps or skids.
Listed by
- East Midlands Trailers - Leicester, Thrussington
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
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
- East Midlands Trailers - Leicester, Thrussington
- R M Trailer Centre - Middlesbrough, North Ormesby
Common questions
What is the difference between the Ifor Williams GP126 and the Ifor Williams HBX506?
The Ifor Williams GP126 is rated 900kg heavier gross and is 40cm (1.5ft) longer inside. The Ifor Williams GP126 is a general purpose plant trailer; the Ifor Williams HBX506 is a a double horsebox trailer from Ifor Williams' HBX range.
Which is lighter, the Ifor Williams GP126 or the Ifor Williams HBX506?
The Ifor Williams GP126. It is 85kg lighter empty than the Ifor Williams HBX506.
Can I tow the Ifor Williams GP126 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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