Head to head
Ifor Williams HB510XL vs Nugent P3718T
The Ifor Williams HB510XL is a an extra-length double horsebox trailer. The Nugent P3718T is a a tri-axle plant trailer for carrying diggers, dumpers and similar machinery..
Last reviewed 13 September 2026
Specifications side by side
| Ifor Williams HB510XL | Nugent P3718T | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | 1290kg | - |
| Payload | 2210kg | - |
| Internal length | 4.25m | - |
| Internal width | 1.74m | - |
| Bed length | - | 3.7m |
| Bed width | - | 1.8m |
| Bed height | - | 403mm |
| Wheels | - | 13 inch |
Sources: Ifor Williams HB510XL, Nugent P3718T. Figures vary by model year and options, so check with the supplier before you commit.
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
Buy or hire the P3718T if...
The P3718T is one of Nugent's tri-axle plant trailers, using its Dual Drive suspension to keep a low, stable loading angle for machinery. It suits contractors and plant hire firms who want the extra stability of three axles over a twin-axle model like the Ifor Williams GX126 at a similar 3500kg gross weight.
Full P3718T specifications →Common questions
What is the difference between the Ifor Williams HB510XL and the Nugent P3718T?
The Ifor Williams HB510XL is a an extra-length double horsebox trailer; the Nugent P3718T is a a tri-axle plant trailer for carrying diggers, dumpers and similar machinery..
Can I tow the Ifor Williams HB510XL or the Nugent P3718T 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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