Head to head
Ifor Williams GH146 vs Ifor Williams HB510XL
The Ifor Williams GH146 is 380kg lighter empty and carries 380kg more.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB510XL weighs 380kg more empty.
- Payload: the Ifor Williams GH146 carries 380kg more.
Specifications side by side
| Ifor Williams GH146 | Ifor Williams HB510XL | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | 910kg | 1290kg |
| Payload | 2590kg | 2210kg |
| Internal bed | 4.285m x 1.84m | - |
| Internal length | - | 4.25m |
| Internal width | - | 1.74m |
Sources: Ifor Williams GH146, Ifor Williams HB510XL. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GH146 if...
- you want one that is 380kg lighter empty
- you want one that carries 380kg more
Aimed at plant hire operators who need the longest bed in the GH range for larger excavators or two smaller machines, with a tri-axle chassis to keep payload up within the 3500kg limit.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Buy or hire the HB510XL if...
For owners of taller or longer horses who find the standard HB511 too tight, giving extra internal length on the same 3500kg chassis so it stays towable by a suitably rated 4x4.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
Common questions
What is the difference between the Ifor Williams GH146 and the Ifor Williams HB510XL?
The Ifor Williams GH146 is 380kg lighter empty and carries 380kg more. The Ifor Williams GH146 is a a tri-axle long-bed plant trailer; the Ifor Williams HB510XL is a an extra-length double horsebox trailer.
Which is lighter, the Ifor Williams GH146 or the Ifor Williams HB510XL?
The Ifor Williams GH146. It is 380kg lighter empty than the Ifor Williams HB510XL.
Which carries more, the Ifor Williams GH146 or the Ifor Williams HB510XL?
The Ifor Williams GH146, by 380kg.
Can I tow the Ifor Williams GH146 or the Ifor Williams HB510XL 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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