Head to head
Ifor Williams HB510XL vs Stewart GX14-19 S
The Ifor Williams HB510XL is 3,660kg lighter empty.
Last reviewed 13 September 2026

Key differences
- Unladen weight: the Stewart GX14-19 S weighs 3,660kg more empty.
Specifications side by side
| Ifor Williams HB510XL | Stewart GX14-19 S | |
|---|---|---|
| Unladen weight | 1290kg | 4950kg |
| Gross weight | 3500kg | - |
| Payload | 2210kg | - |
| Internal length | 4.25m | - |
| Internal width | 1.74m | - |
| Carrying capacity | - | 14,000kg |
| Cubic capacity | - | grain 19m3, silage 33 m3 |
| Body | - | 6100 x 2450 x 1370mm (GX 14 19 S) |
| Tipped height | - | 6300mm |
Sources: Ifor Williams HB510XL, Stewart GX14-19 S. 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 3,660kg lighter empty
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 GX14-19 S if...
A large tipping trailer in Stewart's GX range, sized for muck-away and aggregate work in the 14-19 tonne bracket, fitted with an easy sheet system to cover loads without climbing on the trailer.
Listed by
- Rising Sun Trailer Hire - York
Common questions
What is the difference between the Ifor Williams HB510XL and the Stewart GX14-19 S?
The Ifor Williams HB510XL is 3,660kg lighter empty. The Ifor Williams HB510XL is a an extra-length double horsebox trailer; the Stewart GX14-19 S is a 14 to 19 tonne tipping trailer with easy sheet.
Which is lighter, the Ifor Williams HB510XL or the Stewart GX14-19 S?
The Ifor Williams HB510XL. It is 3,660kg lighter empty than the Stewart GX14-19 S.
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