Head to head
Ifor Williams HB510XL vs Ifor Williams P7e
The Ifor Williams P7e is 1,097kg lighter empty. The Ifor Williams HB510XL is rated 2,750kg heavier gross and carries 1,653kg more.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB510XL weighs 1,097kg more empty.
- Gross weight: the Ifor Williams HB510XL is rated 2,750kg heavier gross.
- Payload: the Ifor Williams HB510XL carries 1,653kg more.
Specifications side by side
| Ifor Williams HB510XL | Ifor Williams P7e | |
|---|---|---|
| Gross weight | 3500kg | 750kg |
| Unladen weight | 1290kg | 193kg |
| Payload | 2210kg | 557kg |
| Internal length | 4.25m | - |
| Internal width | 1.74m | - |
| Internal bed | - | 2.21m x 1.21m |
| Brakes | - | Unbraked |
Sources: Ifor Williams HB510XL, Ifor Williams P7e. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the HB510XL if...
- you want one that is rated 2,750kg heavier gross
- you want one that carries 1,653kg more
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
Buy or hire the P7e if...
- you want one that is 1,097kg lighter empty
For buyers who find the P6e's bed a little short for longer items like ladders or fencing panels, on the same unbraked 750kg chassis.
Listed by
- Cobham Trailer Hire - Cobham, East Horsley
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Common questions
What is the difference between the Ifor Williams HB510XL and the Ifor Williams P7e?
The Ifor Williams P7e is 1,097kg lighter empty. The Ifor Williams HB510XL is rated 2,750kg heavier gross and carries 1,653kg more. The Ifor Williams HB510XL is a an extra-length double horsebox trailer; the Ifor Williams P7e is a a slightly longer unbraked general-purpose trailer.
Which is lighter, the Ifor Williams HB510XL or the Ifor Williams P7e?
The Ifor Williams P7e. It is 1,097kg lighter empty than the Ifor Williams HB510XL.
Which carries more, the Ifor Williams HB510XL or the Ifor Williams P7e?
The Ifor Williams HB510XL, by 1,653kg.
Can I tow the Ifor Williams HB510XL or the Ifor Williams P7e 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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