Head to head
Ifor Williams HB510XL vs Ifor Williams P6e
The Ifor Williams P6e is 1,118kg lighter empty. The Ifor Williams HB510XL is rated 2,750kg heavier gross and carries 1,632kg more.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB510XL weighs 1,118kg more empty.
- Gross weight: the Ifor Williams HB510XL is rated 2,750kg heavier gross.
- Payload: the Ifor Williams HB510XL carries 1,632kg more.
Specifications side by side
| Ifor Williams HB510XL | Ifor Williams P6e | |
|---|---|---|
| Gross weight | 3500kg | 750kg |
| Unladen weight | 1290kg | 172kg |
| Payload | 2210kg | 578kg |
| Internal length | 4.25m | - |
| Internal width | 1.74m | - |
| Internal bed | - | 1.98m x 1.21m |
| Brakes | - | Unbraked |
Sources: Ifor Williams HB510XL, Ifor Williams P6e. 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 1,632kg 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 P6e if...
- you want one that is 1,118kg lighter empty
A step up from the P5 for domestic and light trade users who need a slightly bigger bed while staying under the 750kg limit that avoids the need for brakes.
Listed by
- Towy Trailer Centre - Llandeilo, Ffairfach
- G-Tec Trailers - Thetford, Holme Hale
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Common questions
What is the difference between the Ifor Williams HB510XL and the Ifor Williams P6e?
The Ifor Williams P6e is 1,118kg lighter empty. The Ifor Williams HB510XL is rated 2,750kg heavier gross and carries 1,632kg more. The Ifor Williams HB510XL is a an extra-length double horsebox trailer; the Ifor Williams P6e is a a small unbraked general-purpose trailer.
Which is lighter, the Ifor Williams HB510XL or the Ifor Williams P6e?
The Ifor Williams P6e. It is 1,118kg lighter empty than the Ifor Williams HB510XL.
Which carries more, the Ifor Williams HB510XL or the Ifor Williams P6e?
The Ifor Williams HB510XL, by 1,632kg.
Can I tow the Ifor Williams HB510XL or the Ifor Williams P6e 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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