Head to head
Ifor Williams HB403 vs Ifor Williams LM126
The Ifor Williams LM126 is rated 1.9 tonnes heavier gross and is 92kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams LM126 is rated 1.9 tonnes heavier gross.
- Unladen weight: the Ifor Williams HB403 weighs 92kg more empty.
Specifications side by side
| Ifor Williams HB403 | Ifor Williams LM126 | |
|---|---|---|
| Gross weight | 1600kg | 3,500kg |
| Unladen weight | 767kg | 675kg |
| Payload | 833kg | - |
| Internal length | 3.08m | - |
| Internal width | 1.30m | - |
| Deck | - | 3.62m x 1.98m (11ft 9in x 6ft 5in) |
| Brakes | - | Braked |
Sources: Ifor Williams HB403, Ifor Williams LM126. Figures vary by model year and options, so check with the supplier before you commit.
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
Buy or hire the LM126 if...
- you want one that is rated 1.9 tonnes heavier gross
- you want one that is 92kg lighter empty
A workhorse flatbed for plant hire firms, groundworkers and landscapers moving mini-diggers, pallets and fencing. The payload relative to its own weight is the reason it is so common on sites: 675kg unladen against a 3,500kg gross leaves a useful figure.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- Cobham Trailer Hire - Cobham, East Horsley
- G-Tec Trailers - Thetford, Holme Hale
Common questions
What is the difference between the Ifor Williams HB403 and the Ifor Williams LM126?
The Ifor Williams LM126 is rated 1.9 tonnes heavier gross and is 92kg lighter empty. The Ifor Williams HB403 is a a compact single-horse or two-pony horsebox trailer; the Ifor Williams LM126 is a flatbed trailer, twin axle.
Which is lighter, the Ifor Williams HB403 or the Ifor Williams LM126?
The Ifor Williams LM126. It is 92kg lighter empty than the Ifor Williams HB403.
Can I tow the Ifor Williams HB403 or the Ifor Williams LM126 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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