Head to head
Ifor Williams General Duty vs Ifor Williams HB510XL
The Ifor Williams HB510XL is rated 2.1 tonnes heavier gross and is 2.41m (8ft) longer inside.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams HB510XL is rated 2.1 tonnes heavier gross.
- Internal length: the Ifor Williams HB510XL is 2.41m (8ft) longer inside.
- Internal width: the Ifor Williams HB510XL is 51cm (1.5ft) wider inside.
Specifications side by side
| Ifor Williams General Duty | Ifor Williams HB510XL | |
|---|---|---|
| Gross weight | 1400kg to 2700kg depending on model | 3500kg |
| Internal length | 1.84m (6ft) to 3.71m (12ft 2in) | 4.25m |
| Internal width | 1.23m (4ft) to 1.71m (5ft 6in) | 1.74m |
| Axles | Single or twin axle | - |
| Unladen weight | - | 1290kg |
| Payload | - | 2210kg |
Sources: Ifor Williams General Duty, Ifor Williams HB510XL. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the General Duty if...
Ifor Williams's entry-level flatbed range, bought by householders, gardeners and small trades for tip runs, garden waste and general loads. It is the trailer most UK hire yards keep several of, since one size or another suits almost any small job.
Listed by
- John Page Trailers Ltd - Ashford, Biddenden
Buy or hire the HB510XL if...
- you want one that is rated 2.1 tonnes heavier gross
- you want one that is 2.41m (8ft) longer inside
- you want one that is 51cm (1.5ft) wider inside
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 General Duty and the Ifor Williams HB510XL?
The Ifor Williams HB510XL is rated 2.1 tonnes heavier gross and is 2.41m (8ft) longer inside. The Ifor Williams General Duty is a small flatbed/general purpose trailer range; the Ifor Williams HB510XL is a an extra-length double horsebox trailer.
Can I tow the Ifor Williams General Duty 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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