Head to head
Bockmann KT-PB-AL 3015/27 M F vs Ifor Williams HB510XL
The Ifor Williams HB510XL is 100cm (3.5ft) longer inside and is rated 800kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Internal length: the Ifor Williams HB510XL is 100cm (3.5ft) longer inside.
- Gross weight: the Ifor Williams HB510XL is rated 800kg heavier gross.
- Internal width: the Ifor Williams HB510XL is 23cm wider inside.
- Payload: the Ifor Williams HB510XL carries 165kg more.
Specifications side by side
| Bockmann KT-PB-AL 3015/27 M F | Ifor Williams HB510XL | |
|---|---|---|
| Gross weight | 2700kg | 3500kg |
| Payload | 2045kg | 2210kg |
| Internal length | 3255mm | 4.25m |
| Internal width | 1515mm | 1.74m |
| Internal height | 2093mm | - |
| Axles | 2 | - |
| Brakes | Braked (overrun) | - |
| Unladen weight | - | 1290kg |
Sources: Bockmann KT-PB-AL 3015/27 M F, Ifor Williams HB510XL. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the KT-PB-AL 3015/27 M F if...
A low-loading, fully enclosed box trailer aimed at tradespeople who need to carry tools, motorbikes or equipment securely and out of the weather. The low load height makes wheeling heavy items in and out easier than a high-sided box.
Listed by
- Böckmann UK Trailers & Horseboxes - Cinderford, Littledean
Buy or hire the HB510XL if...
- you want one that is 100cm (3.5ft) longer inside
- you want one that is rated 800kg heavier gross
- you want one that is 23cm wider inside
- you want one that carries 165kg 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
Common questions
What is the difference between the Bockmann KT-PB-AL 3015/27 M F and the Ifor Williams HB510XL?
The Ifor Williams HB510XL is 100cm (3.5ft) longer inside and is rated 800kg heavier gross. The Bockmann KT-PB-AL 3015/27 M F is a low-loader box trailer with aluminium body and polyester front; the Ifor Williams HB510XL is a an extra-length double horsebox trailer.
Which carries more, the Bockmann KT-PB-AL 3015/27 M F or the Ifor Williams HB510XL?
The Ifor Williams HB510XL, by 165kg.
Can I tow the Bockmann KT-PB-AL 3015/27 M F 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.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.