Head to head
Ifor Williams GX126 vs Ifor Williams HB403
The Ifor Williams GX126 carries 1,902kg more and is rated 1.9 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Payload: the Ifor Williams GX126 carries 1,902kg more.
- Gross weight: the Ifor Williams GX126 is rated 1.9 tonnes heavier gross.
- Internal width: the Ifor Williams GX126 is 54cm (2ft) wider inside.
- Internal length: the Ifor Williams GX126 is 58cm (2ft) longer inside.
- Unladen weight: the Ifor Williams HB403 weighs 2kg more empty.
Specifications side by side
| Ifor Williams GX126 | Ifor Williams HB403 | |
|---|---|---|
| Internal length | 3.66m / 12'0" | 3.08m |
| Internal width | 1.84m / 6'0" | 1.30m |
| Gross weight | 3500kg | 1600kg |
| Unladen weight | 765kg (Skids); 795kg (Ramp) | 767kg |
| Payload | 2735kg (Skids); 2705kg (Ramp) | 833kg |
| Overall length | 5.70m | - |
| Overall width | 2.30m | - |
| Tyres | 155/70R12C | - |
Sources: Ifor Williams GX126, Ifor Williams HB403. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GX126 if...
- you want one that carries 1,902kg more
- you want one that is rated 1.9 tonnes heavier gross
- you want one that is 54cm (2ft) wider inside
- you want one that is 58cm (2ft) longer inside
- you want one that is 2kg lighter empty
The GX126 is Ifor Williams' mainstream plant trailer for mini diggers, dumpers and similar machinery on a single-axle-per-side, 3500kg braked chassis. Hirers usually pick the Ramp version for self-loading and the Skids version where a separate loading ramp or forklift is already available.
Full GX126 specifications →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 GX126 and the Ifor Williams HB403?
The Ifor Williams GX126 carries 1,902kg more and is rated 1.9 tonnes heavier gross. The Ifor Williams GX126 is a a twin-axle plant trailer available in Skids and Ramp variants for carrying machinery.; the Ifor Williams HB403 is a a compact single-horse or two-pony horsebox trailer.
Which is lighter, the Ifor Williams GX126 or the Ifor Williams HB403?
The Ifor Williams GX126. It is 2kg lighter empty than the Ifor Williams HB403.
Which carries more, the Ifor Williams GX126 or the Ifor Williams HB403?
The Ifor Williams GX126, by 1,902kg.
Can I tow the Ifor Williams GX126 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.
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