Head to head
Ifor Williams GP126 vs Ifor Williams HB511
The Ifor Williams GP126 is rated 800kg heavier gross and is 220kg lighter empty. The Ifor Williams HB511 is 1cm wider inside.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams GP126 is rated 800kg heavier gross.
- Unladen weight: the Ifor Williams HB511 weighs 220kg more empty.
- Internal length: the Ifor Williams GP126 is 14cm longer inside.
- Internal width: the Ifor Williams HB511 is 1cm wider inside.
Specifications side by side
| Ifor Williams GP126 | Ifor Williams HB511 | |
|---|---|---|
| Gross weight | 3500kg | 2,700kg |
| Unladen weight | 780kg (skids) or 795kg (ramp) | 1,000kg |
| Internal length | 3.66m/12' | 3.52m |
| Internal width | 1.78m/5'10" | 1.79m |
| Brakes | - | Braked |
Sources: Ifor Williams GP126, Ifor Williams HB511. 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 800kg heavier gross
- you want one that is 220kg lighter empty
- you want one that is 14cm longer 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 HB511 if...
- you want one that is 1cm wider inside
The wider step up from the HB506, for larger horses or owners who want more room in transit. The extra 12cm of internal width and 36cm of length cost 80kg unladen, which is worth checking against your tow vehicle before choosing it over the HB506.
Listed by
- Trek-Trailers Suffolk - Bury Saint Edmunds
- R M Trailer Centre - Middlesbrough, North Ormesby
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- Horse Trailer Sales - Robertsbridge, Staplecross
- Trek-Trailers Three Counties - Hereford
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Ifor Williams GP126 and the Ifor Williams HB511?
The Ifor Williams GP126 is rated 800kg heavier gross and is 220kg lighter empty. The Ifor Williams HB511 is 1cm wider inside. The Ifor Williams GP126 is a general purpose plant trailer; the Ifor Williams HB511 is a two-horse trailer, twin axle, wider body.
Which is lighter, the Ifor Williams GP126 or the Ifor Williams HB511?
The Ifor Williams GP126. It is 220kg lighter empty than the Ifor Williams HB511.
Can I tow the Ifor Williams GP126 or the Ifor Williams HB511 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.